Went last night to Best Buy and my wife got an iPhone 7 128GB Silver. I was told by the employee that these are the sim free world phones. I was skeptical at first because i thought they were not being sold yet. But when we finalized the transaction and took it home there was no sim in the tray my wife popped in her simple mobile sim and it worked fine. In fact before we'd have to put in the data settings but didn't need to this time. We also didn't have to tell them with what service provider we were with and he said that all their phones are the sim free world phones. None of their phones come with sim cards from a certain provider. I live in Houston and he's saying all Best Buys are selling the sim free phones. Anybody else got a an iPhone 7 from Best Buy?