Is there any significant issues on the phone that would make you think twice about buying it again? Also for non T-MOBILE N1 users, how are 2.5G speeds on AT&T or any other 'unlocked' network, do you wish it was 3G, or you really don't care since you browse web a lot? I need the phone since I sold my droid, but hesitating on spending $500 for non 3G. Does anybody have any word on AT&T Nexus 1 version? thank you.