So I let my patience get the best of me and upgraded last month to the iPhone 3g. In order to get the iPhone 4, I would have to pay full price. Would I be able to upgrade my boyfriends phone to the iPhone (he is on my plan) and when I got home just put my sim in the new iPhone and let him go back using his old phone? Or could I just tell the AT&T rep that I want to use his upgrade for myself? Is that at all possible or is it more complicated than that?