Anyone with a simlocked iPhone s may be interested to know AT&T will now unlock them.
Call 1 800 222 0300 if outside the States. and go to the mobile phone option. You need the 15 cipher IMEI number, best to say the phone was a gift, and expect the call to take some 25 minutes.
If the phone is elligible to be unlocked you'll get a case number and expect to receive an e-mail with further unlocking details (requires iTunes on your computer) For some reason it takes several days to get this info (I was told to expect it on the 26th) but best of all it's free.