I am considering buying an iPhone for my wife as a birthday/christmas gift, who lives in Thailand now, but will be coming over next year sometime. I am thinking iPhone 4, because of the video chat and the reliability and ease of use of it. She isn't too tech savvy, so I think an iPhone would be a good choice for her.
I guess I'm asking how would I go about buying an iPhone 4 that is unlocked and can be used with a thailand sim card, and a US sim card when she comes over? And what kind of price range am I looking at here? Should I get used, or new? I would prefer new, but depends on the price.