I've just read a post over on XDA that shows a picture of a sticker on the box stating that only European SIM cards will be recognised in the phone. If this is in fact true for all Note 3 handsets, this is a complete deal breaker for me as I want the phone to use when I am over in the States without paying the ridiculously high roaming rates my carrier inflicts on me. Can those of you who have them in the UK please state if this is the case with you? It would be helpful to state where you got the phone and what carrier it is on or whether it is unlocked too please. If any UK owners happen to have an American sim, can they try it in their device and let me know please? Thanks for any assistance.