i haven't really looked into much but my contract with t-mobile is about done and i'm wondering if i can use my 7100T with a different operator or unlock it with some type of code.
Yes, you can unlock it and use it with any other GSM service provider. Try talking with Tmo, depending on how long you've been with them they might unlock it for free. Otherwise GSM PhoneSource - When Only The Best Will Do can unlock BlackBerry's.
unlocking an 7100T
