I was thinking of getting the HTC One on Sprint. I have heard conflicting reports as if this is a world phone or not. I think it supports GSM 800 and 1900 bands. I want to know if I can just pop in a SIM card from another country and use it as a unlock phone (I know I have to ask Sprint to unlock it). I am going to France this summer and wants to use the phone there. Any help would be much appreciated. If it is not a world phone, I guess I have to pass up the One for now!