Ok my first post so be kind, checked to see if any recent posts on this and couldnt see any. Bought one today and was going to pay for unlock but worked with O2 sim card straight out of the box. The beauty of the 3 network is no topup upon purchase required infact you get £10 on the sim in the box if you feel like using it. Also just released is the android 2.2 update for this phone which i have installed already. Really nice phone for the price i think. All specs in link.