After a short delay, Apple is now taking pre-orders for iPhone 4S. In the United States iPhone 4S is available for AT&T, Sprint and Verizon.
Unlocked iPhone 4S is coming in November.
About the Unlocked iPhone
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 oriPhone 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.
* Credit check may be required; must be 18 or older. An unlocked iPhone may be activated on supported GSM carrier networks. See www.apple.com/iphone for more information. Service may not be available in all areas or at the signal strength, rates, speeds, or bandwidth as demonstrated. Wi-Fi Internet access required for some features; broadband recommended; fees may apply. Some applications, features, and services are not available in all areas. Check with your service provider about network coverage in your area and international roaming options. Warranty information available at www.apple.com/legal/warranty/iphone. When available, transferring your mobile number to a different service provider will terminate your service with your existing provider; termination fees and other charges may apply. Some features may require added fees. Contact your service provider for more details. Use constitutes acceptance of Apple’s software license agreement and third-party terms located in the iPhone box. Unauthorized modification of your iPhone software violates the software license agreement. Inability to use an iPhone due to unauthorized modifications is not covered under your warranty.