Hello guys, I'm little bit confused about the GSM versions and wanted to ask for clarification. I'm going to US and was thinking to buy the phone there as its cheaper. Someone told me that it won't work but I looked at Apple website and can't see why not. Here is what Apple has: http://support.apple.com/kb/HT3939 Basically 4 types: GSM CDMA GSM for China and one more So if I get the GSM (there are two models) then it should work fine in EU, no? And if not, then what would limit me or what would not work? I remember that when I went to US with my iPhone 4 I purchased in UK then all worked fine there so what is actually the limitation if any?