O2 is a famous brand for PDA phones. They launched couple of iphone type touchscreen phone. the O2 XDA Serra was launched in end of the year 2008. this phone has 2.8 inch touchscreen and a Accelerometer sensor. also it has Handwriting recognition feature. the display supports 480 x 640 pixels resolution.
XDA Serra is a 3G phone which supports 7.2mbps HSDPA. it runs with Microsoft Windows Mobile 6.1 Professional OS. Serra has Qualcomm MSM 7201A 528 MHz processor and 288Mb RAM. the internal memory is 512Mb and it supports up to 16GB memory cards. O2 serra has 3.5mm audio jack and mini USB port.
the main camera is 3.15Mp and supports 2048x1536 pixels maximum picture resolution. the camera comes with a LED flash and it also supports 30fps video recording. O2 XDA Serra has a GPS receiver with A-GPS support. it comes with built in Google maps application.
as office features, it has featured organizer. also it's Pocket Office application allows many file types like Word, Excel, PowerPoint, OneNote and PDF.