The contract between iPhone and at&t will expire next year. Will iphone change to Verizon network and becomes CDMA? Iphone brought 9 million users to AT&T, many of which will switch to verizon as soon as the switch takes place. 34% of those who like iphone but did not sign up with AT&T because at&t is the reason. 20% of iPhone users live in San francisco or NYC. During peak time, people experience lots of dropped calls and no 3G network. I hope that iphone becomes CDMA so that I can use PP with an unlocked one.