The Apple Store has now added the online option to purchase an iPhone 4S unlocked and off-contract, fulfilling Apple's launch promise of November. The non-carrier version of the phone costs $649 to $849 depending on storage capacity, and will only work on GSM networks, leaving Sprint and Verizon users out of luck. Much of the rest of the world obtained the unlocked version of this phone in late October, but this marks its first official availability in the USA.