Verizon iPhone vs. AT&T iPhone and how you can switch for free

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PHOENIX -- After years of rumors, Verizon is less than two weeks away from finally adding the iPhone to its lineup of handsets.

So, what's the difference between the iPhone on Verizon and the iPhone on AT&T?

Ken Colburn of Data Doctors compares the two and explains how you might be able to change networks for free.