I received my iPhone 4 today from Apple, and I got it at the $199 price since I was eligible for an upgrade. I have decided that I'm more than happy with my 3GS because I don't want to deal with all this reception/yellow/fragility/etc nonsense and it would be better off for me to just sell the new 4. Since the phone is still sealed, can I sell it as it is and the new buyer can plug it into itunes and enter his phone number? Or is my phone number or information and the like already attached to the new sim card?