Although Apple's exclusive deal with AT&T is expected to last at least through 2010, Bernstein Research analysts Craig Moffett and Toni Sacconaghi claim iPhone sales could double if the device was also distributed by Verizon. The catch, however, would be a drop in subsidies attached to each phone. While AT&T has been estimated to pay a $450 subsidy per device, a non-exclusive deal would likely bri
