HTC TyTN II
Encyclopedia
The HTC TyTN II is an Internet
Internet
The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite to serve billions of users worldwide...

-enabled Windows Mobile
Windows Mobile
Windows Mobile is a mobile operating system developed by Microsoft that was used in smartphones and Pocket PCs, but by 2011 was rarely supplied on new phones. The last version is "Windows Mobile 6.5.5"; it is superseded by Windows Phone, which does not run Windows Mobile software.Windows Mobile is...

 Pocket PC
Pocket PC
A Pocket PC is also known by Microsoft as a 'Windows Mobile Classic device'. It is a hardware specification for a handheld-sized computer, personal digital assistant , that runs the Microsoft 'Windows Mobile Classic' operating system...

 smartphone
Smartphone
A smartphone is a high-end mobile phone built on a mobile computing platform, with more advanced computing ability and connectivity than a contemporary feature phone. The first smartphones were devices that mainly combined the functions of a personal digital assistant and a mobile phone or camera...

 designed and marketed by HTC Corporation of Taiwan. It has a tilting touchscreen
Touchscreen
A touchscreen is an electronic visual display that can detect the presence and location of a touch within the display area. The term generally refers to touching the display of the device with a finger or hand. Touchscreens can also sense other passive objects, such as a stylus...

 with a right-side slide-out QWERTY
QWERTY
QWERTY is the most common modern-day keyboard layout. The name comes from the first six letters appearing in the topleft letter row of the keyboard, read left to right: Q-W-E-R-T-Y. The QWERTY design is based on a layout created for the Sholes and Glidden typewriter and sold to Remington in the...

 keyboard. The TyTN II's functions include those of a camera phone
Camera phone
A camera phone is a mobile phone which is able to capture still photographs . Since early in the 21st century the majority of mobile phones in use are camera phones....

 and a portable media player
Portable media player
A portable media player or digital audio player, is a consumer electronics device that is capable of storing and playing digital media such as audio, images, video, documents, etc. the data is typically stored on a hard drive, microdrive, or flash memory. In contrast, analog portable audio...

 in addition to text messaging
Text messaging
Text messaging, or texting, refers to the exchange of brief written text messages between fixed-line phone or mobile phone and fixed or portable devices over a network...

 and multimedia messaging
Multimedia Messaging Service
Multimedia Messaging Service, or MMS, is a standard way to send messages that include multimedia content to and from mobile phones. It extends the core SMS capability that allowed exchange of text messages only up to 160 characters in length.The most popular use is to send photographs from...

. It also offers Internet services including e-mail
E-mail
Electronic mail, commonly known as email or e-mail, is a method of exchanging digital messages from an author to one or more recipients. Modern email operates across the Internet or other computer networks. Some early email systems required that the author and the recipient both be online at the...

, instant messaging
Instant messaging
Instant Messaging is a form of real-time direct text-based chatting communication in push mode between two or more people using personal computers or other devices, along with shared clients. The user's text is conveyed over a network, such as the Internet...

, web browsing
Web browser
A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier and may be a web page, image, video, or other piece of content...

, and local Wi-Fi
Wi-Fi
Wi-Fi or Wifi, is a mechanism for wirelessly connecting electronic devices. A device enabled with Wi-Fi, such as a personal computer, video game console, smartphone, or digital audio player, can connect to the Internet via a wireless network access point. An access point has a range of about 20...

 connectivity. It is a quad-band GSM
Global System for Mobile Communications
GSM , is a standard set developed by the European Telecommunications Standards Institute to describe technologies for second generation digital cellular networks...

 phone with GPRS
General Packet Radio Service
General packet radio service is a packet oriented mobile data service on the 2G and 3G cellular communication system's global system for mobile communications . GPRS was originally standardized by European Telecommunications Standards Institute in response to the earlier CDPD and i-mode...

, EDGE
Enhanced Data Rates for GSM Evolution
Enhanced Data rates for GSM Evolution is a digital mobile phone technology that allows improved data transmission rates as a backward-compatible extension of GSM...

, UMTS, HSDPA, and HSUPA.

Video driver issues

Soon after its release to market, reviewers and end users reported the TyTN II's graphical performance was below par. Both 2D and 3D graphics were affected, with notable symptoms being poor video playback and severely low frame-rates when running 3D applications and games. The hardware platform (Qualcomm 7200 chipset) suggested that the device was capable of high graphical performance, however the device is consistently outperformed by HTC products released two to three years earlier.

A community of enthusiast developers investigated what might be causing the poor performance and concluded that DirectDraw
DirectDraw
DirectDraw is part of Microsoft's DirectX API. DirectDraw is used to render graphics in applications where top performance is important. DirectDraw also allows applications to run fullscreen or embedded in a window such as most other MS Windows applications. DirectDraw uses hardware acceleration if...

 and Direct3D
Direct3D
Direct3D is part of Microsoft's DirectX application programming interface . Direct3D is available for Microsoft Windows operating systems , and for other platforms through the open source software Wine. It is the base for the graphics API on the Xbox and Xbox 360 console systems...

 applications were running in software rendering
Software rendering
In the context of rendering , software rendering refers to a rendering process that is unaided by any specialized graphics hardware, such as a graphics card. The rendering takes place entirely in the CPU...

 mode only. No hardware acceleration was taking place, and the drivers required to take advantage of the ATI Imageon
Imageon
The Imageon is a line of media processors developed by ATI providing graphics acceleration and other multimedia features for handheld devices such as mobile phones and Personal Digital Assistants ....

 hardware appeared to be missing.

Many users within the community were dissatisfied by the apparent omission of a video driver
Device driver
In computing, a device driver or software driver is a computer program allowing higher-level computer programs to interact with a hardware device....

 that would allow hardware acceleration of graphics, particularly since the device included rendering hardware which was not being used. In an attempt to elicit interest from developers with relevant expertise, the community began raising a bounty which could be offered to any developer (or team of developers) who could solve the problem by enabling hardware acceleration with a homebrew
Homebrew (video games)
Homebrew is a term frequently applied to video games or other software produced by consumers to target proprietary hardware platforms not typically user-programmable or that use proprietary storage methods...

 driver. A website was also established to document and publicize the problem, to pressure HTC to provide a fix, and ultimately start a [class action] lawsuit against the manufacturer.

At least one developer is working to get proper driver support working at HTCClassAction.org. They have successfully created a driver that enables hardware acceleration under specific circumstances (everything but fullscreen). Right now the driver enables D3D and OpenGL ES. This driver does not solve any 2D drawing problems (GUI and menus). The driver does prove that the TyTN II based devices do in fact have functioning GPU accelerated hardware, and it is enabled. It is also important to note that these drivers only work on ROMs based on Windows Mobile 6.1.

Some developers are now working to enable 2D DDI support for the Polaris, which could lead to support for the Kaiser. They are using files obtained from the G810 ROM(s).

Also, some users have upgraded to the driver present in the Samsung Omnia. This driver also uses software rendering, but it has been properly optimized for the ARM architecture.

Versions

Besides the branding differences, there are several models of the HTC TyTN II: the KAIS100, the KAIS110, the KAIS120, and the KAIS130. The KAIS110 has no camera; the KAIS100 has a 3.1 megapixel rear-facing camera; the KAIS120 and KAIS130 have a 3.1 megapixel rear-facing camera and a 0.3 megapixel front-facing camera.

The TyTN II model was sold as:
  • KAIS100
    • AT&T
      AT&T
      AT&T Inc. is an American multinational telecommunications corporation headquartered in Whitacre Tower, Dallas, Texas, United States. It is the largest provider of mobile telephony and fixed telephony in the United States, and is also a provider of broadband and subscription television services...

       Tilt/AT&T
      AT&T
      AT&T Inc. is an American multinational telecommunications corporation headquartered in Whitacre Tower, Dallas, Texas, United States. It is the largest provider of mobile telephony and fixed telephony in the United States, and is also a provider of broadband and subscription television services...

       8925/AT&T
      AT&T
      AT&T Inc. is an American multinational telecommunications corporation headquartered in Whitacre Tower, Dallas, Texas, United States. It is the largest provider of mobile telephony and fixed telephony in the United States, and is also a provider of broadband and subscription television services...

       8925a(United States)
  • KAIS110
    • AT&T
      AT&T
      AT&T Inc. is an American multinational telecommunications corporation headquartered in Whitacre Tower, Dallas, Texas, United States. It is the largest provider of mobile telephony and fixed telephony in the United States, and is also a provider of broadband and subscription television services...

       Tilt/AT&T
      AT&T
      AT&T Inc. is an American multinational telecommunications corporation headquartered in Whitacre Tower, Dallas, Texas, United States. It is the largest provider of mobile telephony and fixed telephony in the United States, and is also a provider of broadband and subscription television services...

       8900/AT&T
      AT&T
      AT&T Inc. is an American multinational telecommunications corporation headquartered in Whitacre Tower, Dallas, Texas, United States. It is the largest provider of mobile telephony and fixed telephony in the United States, and is also a provider of broadband and subscription television services...

       8900a (United States)
  • KAIS120
    • Emobile
      EMOBILE Limited
      E Mobile is a cell phone operator in Japan offering 3G/HSPA data services. As they used to offer only data service, they were not widely known, but now after teaming up with NTT docomo to offer voice service, they are becoming more popular. Between March 2007 and March 2008 they expanded their...

       Emonster S11HT (Japan)
    • HTC TyTN II P4550
    • O2 XDA Stellar (United Kingdom)
    • T-Mobile
      T-Mobile
      T-Mobile International AG is a German-based holding company for Deutsche Telekom AG's various mobile communications subsidiaries outside Germany. Based in Bonn, Germany, its subsidiaries operate GSM and UMTS-based cellular networks in Europe, the United States, Puerto Rico and the US Virgin Islands...

       MDA Vario III (Austria, Croatia, Czech Republic, Germany, the Netherlands, Poland, United Kingdom, Montenegro)
    • Vodafone
      Vodafone
      Vodafone Group Plc is a global telecommunications company headquartered in London, United Kingdom. It is the world's largest mobile telecommunications company measured by revenues and the world's second-largest measured by subscribers , with around 341 million proportionate subscribers as of...

       v1615 (the Netherlands, United Kingdom)
    • Vodafone
      Vodafone
      Vodafone Group Plc is a global telecommunications company headquartered in London, United Kingdom. It is the world's largest mobile telecommunications company measured by revenues and the world's second-largest measured by subscribers , with around 341 million proportionate subscribers as of...

       VPA Compact V
  • KAIS130
    • 3 TyTN II (Ireland, United Kingdom)
    • T-Mobile Austria MDA VArio III (Austria)
    • KPN
      KPN
      KPN is a Dutch landline and mobile telecommunications company, including both 2G and 3G mobile operations...

       HTC TyTN II (the Netherlands)
    • Optus
      Optus
      SingTel Optus Pty Limited is the second largest telecommunications company in Australia, and is a wholly owned subsidiary of Singapore Telecommunications...

       HTC TyTN II (Australia)
    • Orange UK
      Orange UK
      Orange is a mobile network operator and internet service provider in the United Kingdom, which launched in 1994. It was once a constituent of the FTSE 100 Index but was purchased by France Télécom in 2000, which then adopted the Orange brand for all its other mobile communications activities...

       HTC TyTN II (United Kingdom)
    • Plus GSM
      Plus GSM
      Plus is the brand name of Poland's mobile phone network operator, Polkomtel. The company is owned by Spartan Capital Holdings sp. z o.o. 100%...

       HTC TyTN II (Poland)
    • SFR
      SFR
      SFR is a French mobile phone company. It has over 20 million customers, and provides over 4.6 million households with high-speed internet access...

       v1615 (France)
    • Swisscom
      Swisscom
      Swisscom AG is a major telecommunications provider in Switzerland. Along with Swiss Post, it is a successor company to the former state-owned PTT. Its headquarters are located at Worblaufen near Bern...

       Mobile Assistant XPA v1615 (Switzerland)

ROM updates

The TyTN II shipped with Windows Mobile 6.

Official updates are available for several versions of the TyTN II, including the AT&T Tilt (WM 6 AKU 0.4.4), the O2 XDA Stellar (WM 6.1), and the Vodafone v1615.

Developers at XDA-Developers
Xda-developers
xda-developers is a community of over 4 million users worldwide, started in 2003. The site's main purpose is discussion of Windows Phone, Android, and WebOS phones. They are also one of the first places that Windows Mobile and Android users come for general information of the device, ROM upgrades...

 have succeeded in porting Google Android and Windows Mobile 6.5 to the TyTN II.

Specifications

  • Screen size: 2.8 in (71.1 mm)
  • Screen resolution: 240×320 pixels at 143 ppi
    Pixels per inch
    Pixels per inch or pixel density is a measurement of the resolution of devices in various contexts; typically computer displays, image scanners, and digital camera image sensors....

    , 4:3 aspect ratio
    Aspect ratio
    The aspect ratio of a shape is the ratio of its longer dimension to its shorter dimension. It may be applied to two characteristic dimensions of a three-dimensional shape, such as the ratio of the longest and shortest axis, or for symmetrical objects that are described by just two measurements,...

  • Screen colors: 65,536 (16-bit)
  • Input devices: touchscreen
    Touchscreen
    A touchscreen is an electronic visual display that can detect the presence and location of a touch within the display area. The term generally refers to touching the display of the device with a finger or hand. Touchscreens can also sense other passive objects, such as a stylus...

     interface, slide-out QWERTY
    QWERTY
    QWERTY is the most common modern-day keyboard layout. The name comes from the first six letters appearing in the topleft letter row of the keyboard, read left to right: Q-W-E-R-T-Y. The QWERTY design is based on a layout created for the Sholes and Glidden typewriter and sold to Remington in the...

     keyboard, and 360 degree three way jog wheel
  • Battery: 1350 mAh
    Ampere-hour
    An ampere-hour or amp-hour is a unit of electric charge, with sub-units milliampere-hour and milliampere second...

    , user-accessible; up to 7 hours talk, 365 hours standby
  • Camera
    Camera phone
    A camera phone is a mobile phone which is able to capture still photographs . Since early in the 21st century the majority of mobile phones in use are camera phones....

    s: 3.1 megapixel rear-facing with autofocus
    Autofocus
    An autofocus optical system uses a sensor, a control system and a motor to focus fully automatic or on a manually selected point or area. An electronic rangefinder has a display instead of the motor; the adjustment of the optical system has to be done manually until indication...

    , 0.3 megapixel front-facing for video calling
  • Location finding by detection of cell towers and Wi-Fi networks and with Assisted GPS
    Assisted GPS
    Assisted GPS, generally abbreviated as A-GPS or aGPS, is a system which can, under certain conditions, improve the startup performance, or time-to-first-fix of a GPS satellite-based positioning system. It is used extensively with GPS-capable cellular phones as its development was accelerated by...

     (through Google Maps Mobile)
  • Qualcomm MSM7200 (400 MHz ARM
    ARM architecture
    ARM is a 32-bit reduced instruction set computer instruction set architecture developed by ARM Holdings. It was named the Advanced RISC Machine, and before that, the Acorn RISC Machine. The ARM architecture is the most widely used 32-bit ISA in numbers produced...

    1136EJ-S processor)
  • RAM: 128 MB
    Megabyte
    The megabyte is a multiple of the unit byte for digital information storage or transmission with two different values depending on context: bytes generally for computer memory; and one million bytes generally for computer storage. The IEEE Standards Board has decided that "Mega will mean 1 000...

     DRAM
  • ROM: 256 MB flash memory
    Flash memory
    Flash memory is a non-volatile computer storage chip that can be electrically erased and reprogrammed. It was developed from EEPROM and must be erased in fairly large blocks before these can be rewritten with new data...

  • Removable media: microSDHC, up to 32 GB
    Gigabyte
    The gigabyte is a multiple of the unit byte for digital information storage. The prefix giga means 109 in the International System of Units , therefore 1 gigabyte is...

  • Operating system: Windows Mobile 6.1
  • Quad band GSM
    Global System for Mobile Communications
    GSM , is a standard set developed by the European Telecommunications Standards Institute to describe technologies for second generation digital cellular networks...

     / GPRS
    General Packet Radio Service
    General packet radio service is a packet oriented mobile data service on the 2G and 3G cellular communication system's global system for mobile communications . GPRS was originally standardized by European Telecommunications Standards Institute in response to the earlier CDPD and i-mode...

     / EDGE
    Enhanced Data Rates for GSM Evolution
    Enhanced Data rates for GSM Evolution is a digital mobile phone technology that allows improved data transmission rates as a backward-compatible extension of GSM...

     (GSM 850/900/1800/1900)
  • Tri-band UMTS
    Universal Mobile Telecommunications System
    Universal Mobile Telecommunications System is a third generation mobile cellular technology for networks based on the GSM standard. Developed by the 3GPP , UMTS is a component of the International Telecommunications Union IMT-2000 standard set and compares with the CDMA2000 standard set for...

    /HSDPA
    High-Speed Downlink Packet Access
    High-Speed Downlink Packet Access is an enhanced 3G mobile telephony communications protocol in the High-Speed Packet Access family, also dubbed 3.5G, 3G+ or turbo 3G, which allows networks based on Universal Mobile Telecommunications System to have higher data transfer speeds and capacity...

    /HSUPA
    High-Speed Uplink Packet Access
    High-Speed Uplink Packet Access is a 3G mobile telephony protocol in the HSPA family with up-link speeds up to 5.76 Mbit/s. The name HSUPA was created by Nokia...

     (850
    UMTS frequency bands
    The UMTS frequency bands are radio frequencies used by third generation wireless Universal Mobile Telecommunications System networks.They were allocated by delegates to the World Administrative Radio Conference held in Málaga-Torremolinos, Spain between February 3, 1992 and March 3, 1992...

    /1900
    UMTS frequency bands
    The UMTS frequency bands are radio frequencies used by third generation wireless Universal Mobile Telecommunications System networks.They were allocated by delegates to the World Administrative Radio Conference held in Málaga-Torremolinos, Spain between February 3, 1992 and March 3, 1992...

    /2100
    UMTS frequency bands
    The UMTS frequency bands are radio frequencies used by third generation wireless Universal Mobile Telecommunications System networks.They were allocated by delegates to the World Administrative Radio Conference held in Málaga-Torremolinos, Spain between February 3, 1992 and March 3, 1992...

    ) The EMobile EMonster S11HT is reported to have a UMTS 1700 band.
  • Wi-Fi
    Wi-Fi
    Wi-Fi or Wifi, is a mechanism for wirelessly connecting electronic devices. A device enabled with Wi-Fi, such as a personal computer, video game console, smartphone, or digital audio player, can connect to the Internet via a wireless network access point. An access point has a range of about 20...

     (802.11b/g
    IEEE 802.11
    IEEE 802.11 is a set of standards for implementing wireless local area network computer communication in the 2.4, 3.6 and 5 GHz frequency bands. They are created and maintained by the IEEE LAN/MAN Standards Committee . The base version of the standard IEEE 802.11-2007 has had subsequent...

    )
  • Bluetooth 2.0 + EDR
  • Mini USB (HTC ExtUSB)
  • GPS built-in receiver for navigating; built in antenna and MS-147 connector for external connector
  • Size: 59 mm (2.3 in) H, 112 mm (4.4 in) W, 19 mm (0.748031496062992 in) D
  • Weight: 190 g (6.7 oz)

Preloaded software

(Varies by operator)
  • AOL
    AOL
    AOL Inc. is an American global Internet services and media company. AOL is headquartered at 770 Broadway in New York. Founded in 1983 as Control Video Corporation, it has franchised its services to companies in several nations around the world or set up international versions of its services...

     Instant Messenger
  • BlackBerry Connect
  • Brain Challenge
  • Bubble Breaker
  • Business Card Scanner
  • CoPilot Live 7 Sat Nav (Not with O2 UK)
  • Excel
    Microsoft Excel
    Microsoft Excel is a proprietary commercial spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X. It features calculation, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications...

     Mobile
  • HTC Home
  • Midnight Pool
  • Outlook
    Microsoft Outlook
    Microsoft Outlook is a personal information manager from Microsoft, available both as a separate application as well as a part of the Microsoft Office suite...

     Mobile
  • PowerPoint
    Microsoft PowerPoint
    Microsoft PowerPoint, usually just called PowerPoint, is a non-free commercial presentation program developed by Microsoft. It is part of the Microsoft Office suite, and runs on Microsoft Windows and Apple's Mac OS X operating system...

     Mobile
  • MobiTV
  • Ms. Pac-Man
    Ms. Pac-Man
    Ms. Pac-Man is an arcade video game produced by Midway as an unauthorized sequel to Pac-Man. It was released in North America in 1981 and became one of the most popular video games of all time, leading to its adoption by Pac-Man licensor Namco as an official title...

  • MyCast
  • Solitaire
  • Sprite Backup
  • TeleNav
    TeleNav
    TeleNav, Inc. is a wireless location-based services company that provides several services including global positioning system navigation, local search, mobile advertising & commerce, enterprise mobility and workflow automation...

     GPS Navigator
  • TeleNav
    TeleNav
    TeleNav, Inc. is a wireless location-based services company that provides several services including global positioning system navigation, local search, mobile advertising & commerce, enterprise mobility and workflow automation...

     Track
  • Tiger Woods PGA Tour 07
  • TomTom
    TomTom
    TomTom NV is a Dutch manufacturer of automotive navigation systems, including both stand-alone units and software for personal digital assistants and mobile telephones. It is the leading manufacturer of navigation systems in Europe. TomTom's customer service is located in Amsterdam, Netherlands...

     Navigator 6 Taster Edition
  • Windows Live
    Windows Live
    Windows Live is the collective brand name for a set of services and software products from Microsoft, part of their software plus services platform. A majority of these services are Web applications, accessible from a browser, but there are also client-side binary applications that require...

     Messenger
  • Word
    Microsoft Word
    Microsoft Word is a word processor designed by Microsoft. It was first released in 1983 under the name Multi-Tool Word for Xenix systems. Subsequent versions were later written for several other platforms including IBM PCs running DOS , the Apple Macintosh , the AT&T Unix PC , Atari ST , SCO UNIX,...

     Mobile
  • Xpress Mail
  • Yahoo!
    Yahoo!
    Yahoo! Inc. is an American multinational internet corporation headquartered in Sunnyvale, California, United States. The company is perhaps best known for its web portal, search engine , Yahoo! Directory, Yahoo! Mail, Yahoo! News, Yahoo! Groups, Yahoo! Answers, advertising, online mapping ,...

     Messenger

GPS compatibility

Users of this phone have successfully installed and used other GPS map software applications (such as ALK Technologies CoPilot Live 7, DeLorme
DeLorme
DeLorme is a major vendor of business-to-business and consumer mapping and GPS products and technologies. It is based in Yarmouth, Maine, United States....

 Street Atlas USA 2009, Fugawi, Garmin
Garmin
Garmin Ltd. , incorporated in Schaffhausen, Switzerland, is the parent company of a group of companies founded in 1989 by Gary Burrell and Min Kao , that develops consumer, aviation, and marine technologies for the Global Positioning System...

 Mobile XT, Google
Google
Google Inc. is an American multinational public corporation invested in Internet search, cloud computing, and advertising technologies. Google hosts and develops a number of Internet-based services and products, and generates profit primarily from advertising through its AdWords program...

 Maps Mobile, iNav
INav iGuidance 4
iGuidance is a Global Positioning System navigation software program by iNav Corporation. It is compatible with Windows Mobile , Windows XP, Windows Vista ....

 iGuidance, Intrisync Destinator, Microsoft
Microsoft
Microsoft Corporation is an American public multinational corporation headquartered in Redmond, Washington, USA that develops, manufactures, licenses, and supports a wide range of products and services predominantly related to computing through its various product divisions...

 Live Search Mobile, TomTom
TomTom
TomTom NV is a Dutch manufacturer of automotive navigation systems, including both stand-alone units and software for personal digital assistants and mobile telephones. It is the leading manufacturer of navigation systems in Europe. TomTom's customer service is located in Amsterdam, Netherlands...

, Tracky, and VisualGPS BeeLineGPS), which are either free or cost nothing beyond the original purchase price. The map applications are compatible with the built-in GPS receiver, provided users set the appropriate COM port for the map application (COM4, 4800 baud).

The built-in GPS receiver was intended by some wireless providers to be used preferably with Telenav
TeleNav
TeleNav, Inc. is a wireless location-based services company that provides several services including global positioning system navigation, local search, mobile advertising & commerce, enterprise mobility and workflow automation...

, which is a service that charges users monthly fees or fees based on the amount of downloaded map data. It should be noted that Telenav can only provide map data in areas where applicable cellular phone services are available and that users must have a data plan with their wireless providers.

Discussion forums


External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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