iPhone 4S Available Unlocked in the US, on AT&T Alone

Today, Apple started selling the unlocked iPhone 4S device in the United States, but with a big catch: it can be activated only on AT&T's network.

Only the GSM flavor of the device is available without carrier locking from Apple's stores, and those who were planning on getting one for use on a CDMA carrier in the country are out of luck.

When in the US, they are confined to AT&T's network, they able to put any micro-SIM card inside their iPhone 4S when traveling abroad.

All three iPhone 4S flavor went available unlocked today, offering 16GB of memory for $649 (475 Euros), 32GB for $749 (548 Euros), and 64GB for $849 (621 Euros).

All users who would like to purchase a new iPhone 4S without committing to a contract agreement with a wireless carrier and who are willing to pay that amount of money for the device are now able to do so. The rest of you should head over to AT&T, Sprint or Verizon and have a look at their offerings.