The Sony Ericsson P910 is a smartphone by Sony Ericsson introduced in 2004 and the successor of the Sony Ericsson P900. The P910 has a full QWERTY keyboard on the back of the flip (the flip can also be removed completely, allowing for a 'traditional' PDA form-factor). The biggest change from the P900 to the P910 is that the P910 supports Memory Stick PRO Duo and the phone's internal memory has been upped from 16 MB to 64 MB. Although Memory Stick PRO Duo comes in larger capacities, the maximum supported by the P910i is 2 GB. It is powered by an ARM9 processor clocked at 156 MHz and runs the Symbian OS with the UIQ graphical user interface. Also, the touchscreen displays 262,144 colours (an 18-bit colour depth), as opposed to the P900's 65,536 (16-bit). It comes in three versions: P910i (GSM 900/1800/1900) P910c (GSM 900/1800/1900 for China mainland) P910a (GSM 850/1800/1900 for North America and Latin America) One of the key aspects of the P910 is its ability to input text via several methods: multi-tap and T9 text input using the numerical keypad, hand-writing recognition with the pre-installed Jot-Pro software and touchscreen, virtual keyboard on screen and the new QWERTY keyboard on the inside of the flip. Other enhancements (compared to the P900) include support for HTML browsing, a new numerical keypad with larger keys and a slightly changed outer casing. Its closest competitors are the palmOne Treo 650, and the Nokia 9500 Communicator. Other competitors include several PDA-phones powered by Windows and manufactured by Taiwan-based HTC. Sony Ericsson released the successor to the P910 in early 2006. It is called the Sony Ericsson P990. Specifications 208x320 screen resolution 262,144 color touchscreen LCD UIQ 2.1 based on Symbian OS 7 115 x 57 x 24 mm in size GSM P910i (Europe): 900 MHz/1800 MHz/1900 MHz, P910a (North America): 850 MHz/1800 MHz/1900 MHz Standard Functions and Programs Business Calendar Contacts Jotter Messages Pdf+ reader Phone Quicksheet Quickword Tasks Tools Calculator Control Panel Demo File Manager GPRS Data Log Remote Sync Sound Recorder Storage Wizard Time External links Review by The Register Review by Cnet Sony Ericsson P910i Manual Sony Ericsson smartphones Mobile phones introduced in 2004 Symbian devices Mobile phones with infrared transmitter