Although Apple has only said it would sell an unlocked iPhone 4S in the US for November, some buyers have found that AT&T might already be selling its version unlocked in certain circumstances. Both in a post by developer Steve Troughton-Smith and reports from the MacRumors forums have shown that the full price, off-contract iPhone 4S should work with any compatible GSM-based carrier, such as T-Mobile. While it's not certain if any special steps need to be taken, restoring the phone produces the same "Congratulations! Your iPhone has been unlocked" message as for th
