
Apple has officially started selling an unlocked iPhone 4.The company's online store now lists both a 16GB and 32GB unlocked version of the smartphone. Customers can choose between a black or white model. The company's 16GB version retails for $649, while the 32GB option is available for $749.Apple currently sells locked versions of the iPhone for $199 and $299 for the 16GB and 32GB models, respectively."If...