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Somebody like original iphone, some like unlock.Chalk this up as a win for anyone with a GSM iPhone: AT&T on Friday announced that starting Sunday, the company will allow customers who have fulfilled their two-year contracts to unlock their iPhone for use on any GSM network.(ipad to mac transfer)This brings AT&T's iPhone unlocking policy closer to that of its other supported devices: In the past, subscribers could unlock a non-Apple phone after their contract had expired, but the company refused to unlock the iPhone except in special circumstances.Unfortunately, AT&T subscribers who wish to roam internationally on their iPhone 4S using a local micro-SIM card will still have to purchase an unlocked device at full price: AT&T won't unlock the GSM micro-SIM for international use during a contract term, as doing so would also enable you to use any GSM network at home. (ipod to mac transfer review )In contrast, Verizon and Sprint can offer the iPhone 4S with the GSM micro-SIM slot unlocked for international use because the companies use the CDMA standard in the United States.