i have an att sim card and the service but i really like this phone i saw at target but itz for t-mobile.ANSWERZ PLEZ
if you have the phone unlocked, yes it will work.
No you cannot, you may be able too but att cannot gaurentee that the phone will work properly, because the phone is not designed to run on the att network,
T-moble can unlock the phone so it will accept a different Sim card, but if it wont fit in the phone then your out of luck
Most phones will work if there unlocked. But not all the features will work. But T-mobile will not unlock phones for non customers. The sim will fit. I have a friend whose sidekick (t-mobile phone) works on ATT fully functional. I have two blackberry's for ATT that work on T-mobile. All my phones are unlocked by either ATT or T-mobile. If you have a friend that has T-mobile get them to unlock it for you. But they have to be account holder.
