Cingular will give you an unlock code if you pay the no-contract price for the phone. or If a rep doesn't seem to want to, just call back and talk to somebody else and they should

you just need to enter the following sequence:

#pw+15-digitscode+1# in the screen, where Cingular is displayed (idle screen)

type #, then type * 2-times, you will see a little p and so on as described