I Have Some iPhone 3G Questions I'm thinking about getting an iPhone 3G for Christmas, but I don't want to pay $70 a month. How much is the cancelation fee, and what is the difference between canceling before or after 30 days? If I buy a 3G on eBay and it is "unlockable" , does that mean it was already canceled and I just have to put a pay as you go SIM card in it? Even with a prepaid data card, will it perform just as well as it would with the real iPhone plan? What would it all add up to, if I bought an 8gb iPhone, canceled the contract, and used a PAYG SIM card? (not including minutes/data yet) How much do prepaid minutes and data cost? Thank you if you answer these questions. I'm in the US by the way.