The concept of “world phone” that Apple proposed when they first released information about the iPhone 4S is becoming a reality as Apple plans on offering an unlocked, contract-free variation in November that will work on supported international GSM networks as well as AT&T. It will not work on CDMA carriers such as Verizon Wireless or Sprint. Users will need a local micro-SIM card for the phone to work properly abroad. The prices on the unlocked iPhones are up there in the iPad range with the 16GB at $649, the 32GB at $749, and the 64GB at $849.