Apple iPhone 3G S 32GB Black / White (Officially Unlocked by Apple).....Officially Unlocked by Apple, Permanently (No Software Hack & No Turbo SIM) - you can upgrade it to any firmware in the future and it will not lock back (unlike those which are unlocked unofficially)Please note that there are many other sellers selling iPhone 3G S from AT&T - these phones can never be officially unlocked and at the moment there is not even a hack or Turbo SIM to unlock it unofficially, and there might not be a solution for a long time.