Millions of iPhones Go AWOL

The huge gap between units sold and iPhone buyers signed to AT&T may mean there are a lot more hacked iPhones out there than anyone expected
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It's been dubbed the Mystery of the Missing iPhones. On Jan. 22, Apple reported that it sold 3.7 million units of its smartphones worldwide through the end of 2007. But AT&T, the exclusive U.S. iPhone reseller and by far the largest buyer of the devices, reported that its subscribers activated fewer than 2 million units last year. The big question on the minds of Apple watchers is: Where have the other 1.7 million iPhones gone?

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