O2 XDA Star, review, price, specification O2 XDA Star review - O2 XDA Star is a triband GSM/GPRS/EDGE and singleband UMTS/HSDPA smartphone powered by the Windows Mobile 6 Professional. The XDA Star using platform similar to HTC Touch Dual. This 3.5G enabled smartphone sports a 20-key QWERTY keyboard, a 2.6 inch QVGA touchscreen display, a 2 megapixel camera and Bluetooth 2.0. in Public bookmarkswith o2pricereviewspecificationstarxda