Apple did make it very clear at the Verizon announcement that the phone was not exclusive to Verizon. Odds are, they may see it as a necessary step to keep the growth going, both here in the US via Verizon, and also in a few other countries where CDAM has a large user base. China and India both seem to have enough people on CDMA to help justify the new phone. The other option was to wait for LTE rollout worldwide to reach these users, and that is likely to take years. This would provide more time for Android or other platforms to capture a large chunk of CDMA users, like what happened here in the US with Verizon.

And it's already begun, AT&T and Verizon are now running competing ads about the iPhone, with Apple standing to benefit either way.

Apple's commercial, showing both phones doing the same thing, clearly a neutral stance.


Verizon's poking fun at AT&T's call quality issues


AT&T boasting about simultaneous voice and data