I believe you have to unlock the phone to do that. i got it unlocked to work with my att account, but i don't know if it has to be unlocked for a tmobile account
Very cute phone would like to have it but I am sure toward the end of the auction the credits are going to go through the roof since Boost mobile phones are on high demand these days
since you had it unlocked for at&t will it still work for boost?cuz i have a boost phone and I was wonderin if I could simply take my sim card out of my current phone and put it in this one!??