There is talk that the iPhone 5 will work on either AT&T or Verizon, since it will be using the same chip in the Verizon iPhone 4 that can utilize GSM or CDMA.If you look at the history of just about any cell phone model, the GSM version always is released 6 months to 1 year before the CDMA version. They do this because the GSM market is so much bigger. Think about older models - the HTC Touch Diamond, iPhone, Blackberry Bold...they always drop on GSM first. I really wouldn't be surprised if the Verizon version drops next January.