Hi all, recently I have noticed a crack forming on the back of my iPhone 3G (8GB) in the middle of the dock connector. I am pretty sure that this is means for replacement. I also have noticed the ring/vibrate switch is very loose and wobbly, and will change from vibrate to ring in my pocket while in school My phone is unlocked via Yellowsn0w to use with my carrier (Cincinnati Bell). I am off of school for spring break next week and I plan on making an appointment at the genius bar for then, but before I do that, I want to be sure that I can even get service from Apple without having an At&t account. I would assume so, because the 3G is now sold without a contract. Before going to Apple, I will restore the iPhone to 2.2 so if I don't get a new phone I will be able to unlock again. The phone will have no SIM card in it as well, however, I do have a few At&t SIMs that have no service that I may take just in case. What do you guys think? Your help is appreciated, Ben.