An interesting article in PC Magazine. The contention is that with the iPhone and a mediocre system, AT&T had to build up their tower and backbone system. Without the iPhone, Verizon and the others had to push the manufacturers to develop a decent competitor to the iPhone. Apple has been continuing to push the iPhone to maintain it's advantage. Even if by some miracle, Apple could produce the total demand for smart phones, there would always be desire for other models. In addition, knowing that the only advantage they have is with better coverage, Verizon has to invest heavy in improving their own towers and circuits.