Hi everybody, quick question, and hopefully it isn't too stupid. So say you did buy an iPhone or two, and signed up for a two-year contract with AT&T in order to get the phone working. But for whatever reason you want/need to return the phones. But even if you return the phones to Apple, doesn't that mean you're still stuck on the AT&T contract? Or is it like Verizon, where they give you 30 days to access and try out their network before you're permanently locked in? Thanks!