A New Jersey teenager has figured out how to make Apple's iPhone available on other wireless services besides AT&T, removing a major frustration for thousands of consumers.

And in an exclusive interview on CNBC, 17-year-old George Hotz revealed his motivation for unlocking the device: "It was fun."

"This was a good use of a summer," he said during the live interview Friday afternoon. "I became obsessed with unlocking this thing."

When Apple introduced the iPhone in July, it made the device available only on AT&T's wireless service, prompting widespread complaints among consumers. Hotz was able to unlock the device so that he can use it on his family's T-Mobile service.

U.S. Use Limited

Although T-Mobile is the only other service besides AT&T's that is compatible with the iPhone in the U.S, overseas users are likely to find their services compatible.

Hotz isn't the only one to have claimed to unlock the iPhone. A group calling itself iPhoneSimFree also says it also has hacked the multi-media device.

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