Unlocked iPhone 4S will be available in November
Apple will start to sell the unlocked version of iPhone 4S in November. The price will be $649 for 16GB, $749 fro 32GB and $849 for 64GB model. This is less than prices in Europe.
It is interesting that unlock is related only to GSM side of the phone. For example, users will be able to use the unlocked iPhone with T-Mobile, but not Sprint or Verizon.
Here is official information from Apple:
The unlocked iPhone includes all the features of iPhone but without a contract commitment. You can activate and use it on the supported GSM wireless network of your choice, such as AT&T in the United States.* The unlocked iPhone 4 or iPhone 4S will not work with CDMA-based carriers such as Verizon Wireless or Sprint.
If you don’t want a multiyear service contract or if you prefer to use a local carrier when traveling abroad, the unlocked iPhone is the best choice. It arrives without a micro-SIM card, so you’ll need an active micro-SIM card from any supported GSM carrier worldwide. To start using it, simply insert the micro-SIM card into the slot on your iPhone and turn it on by pressing and holding the On/Off button for a few seconds. Then follow the onscreen instructions to set up your iPhone.