Hi, tomorrow I'm going to Chicago and I'll stay here for 3 days. I wanna buy a 2G or 3G iPhone without AT&T contracts, but I don't know where. Some people told me that in some indian electronic shops I could buy an iPhone, but I don't know where are this shops.. So if someone knows where can I buy an 2G/3G iphone in Chicago without AT&T contract, please let me know. Thank you. Greetings!.