http://www.apple.com/iphone/LTE/ http://www.apple.com/iphone/LTE/ Why aren't all bandwidths supported by a single GSM model? It seems odd that Apple would crea

http://www.apple.com/iphone/LTE/ http://www.apple.com/iphone/LTE/ Why aren't all bandwidths supported by a single GSM model? It seems odd that Apple would create one CDMA model and 2 GSM models, but I'm sure there's a technical/financial reason for that decision. Does anyone know what it is?