Hello all! Let me start by saying i'm not a stranger to the world of smartphones. i had a blackberry pearl flip on tmobile for a while. until my dad got mad and smashed it. now i'm using a friend's old sidekick iD, and i realize how much i've taken my blackberry for granted. now that i'm considering a new phone, the iPhone IS a compelling option and i've even looked into jail breaking and unlocking it. besides liking the "cool factor" the iphone seems really functional. on to unlocking: what would be the limitaions of running the iphone on tmobile? besides the fact that 3g service is out of the question.