Hey guys, I'm from Germany and I'm gonna travel to New York and I wanna buy an iPhone 3Gs (16Gb) at a BestBuy Store. As far as I know BestBuy sells iPhones without a contract, here's a quote: But when I buy an iPhone, do I have to activate it? I want to jailbreak and unlock it so I can use it with T-Mobile Germany. Is it possible to jailbreak and unlock the iPhone without activating it? If I have to activate it, can I just buy an AT&T prepaid sim card (are these the right words? it's called in this way in Germany...)?