I am planning on buying an iPhone 2G, but I have a question about using it on an AT&T family plan. Unfotunately, I currently have a plan with my family (unlimited text and data, so its not that bad). If I put my SIM card into the iphone 2g it should just work automatically correct? I wont have to add any sh*t to my plan either right? Sorry, but somebody told me that it doesn't work with iPhones (i doubt him, just want to be sure). Thanks for the help!!