Apple Inc. (NASDAQ:AAPL) has started selling an unlocked version of the GSM iPhone 4 in the U.S. for $649. Both the white and black iPhone 4 smartphones are available for purchase unlocked. The 16GB and 32GB versions cost $649 and $749 respectively. The unlocked versions are not available for international shipping.
“The unlocked iPhone 4 requires an active micro-SIM card that you obtain from a supported GSM wireless carrier,” states Apple. Customers with unlocked versions of the GSM Apple iPhone 4 can use the phone on AT&T or T-Mobile through data transmission on T-Mobile’s network. However iPhone 4 devices on T-Mobile will work only on EDGE since their 3G network is incompatible with the iPhone.