i've bought my new iPhone 5 from eBay and the seller told me that the phone is with at&t but without contract. he also mentioned that he will ship the phone sealed as he received it from apple. the question here, am i going to be able to activate the phone and get it unlocked on my T-mobile SIM card? please note that i don't have a contract with At&t. the reason why i placed this order is because i read an article that stated that off-contract At&t iPhone can be easily unlocked via iTunes. many thanks!