I have Verizon, and they haev terrible service were I live, so an iPhone a Cinuglar would be the push I need to change. Because I have a family plan, with 2 groups of 2 people getting upgrade at one year apart, so it would cost a little extra to have to plans, with 2 companys but for an iPhone i'd do it, and switch the family over as soon as the 2nd plan it up. (The first plan is already up, but we want to sync it with the 2nd one)