Okay. I found a buyer on craigslist for my old 1G iphone. Now, if I want to sell it, will I need to show my current iPhone to the staff at the apple store when I buy a 3G or can they look up my contract. I'm asking this because I want to know if I need to buy it before or after I sell my old iphone.
Also, when I sell it should I still have my SIM card in it, because I know that has my at&t info stored on it. Is it safe to wipe the SIM card (and how?)
Also, when I sell it should I still have my SIM card in it, because I know that has my at&t info stored on it. Is it safe to wipe the SIM card (and how?)