My dad is going to the states, wants to buy a phone there. AT&T/T-MOBILE bands both work where I'm from. Question is, is there any reliable and easy way to buy other phones except the nexus S unlocked? The phone needs to be STOCK unlocked. I was thinking of the motorola atrix/samsung galaxy s II. He can wait for his next trip and buy them unlocked. But will it be possible to buy them unlocked? Or is the nexus S the only phone in the states that can easily be bought unlocked straight out of the box? Thanks a lot!