I was thinking about buying an official unlocked iPhone 4 from Apple (or 4S or whatever depending on the circumstances), and was wondering what would be the process to get this to work on T-Mobile. I want the officially unlocked one for the ease of updates, and the fact that I don't have to slow my phone down with JBing. Would I just put my cut T-Mobile SIM card in there, and then plug it into iTunes and it would activate like my old AT&T one did? Or do I still have to do some tricks? I also heard that FaceTime won't work as it needs to be able to text a UK number one time, and it just resulted in a bunch of unnecessary charges on your bill. It would be remedied if Apple would allow us to use our E-Mail address like on the iPad or Mac.