So here's my situation.. I live in America, but I'm moving back to Korea. And I wanted to use an iPhone there but it's ridiculously more expensive. (I don't know the exact price of the iPhone, but the iPod Touch 32gb is $600!!!!!!) So I was thinking maybe I could purchase an iPhone 3G or 3GS in America, unlock it myself, and use it on a provider there? I tried doing research on what Korean providers such as SK Telecom use for their service but I'm kinda new to this stuff so I had no luck. So, do you guys know if an iPhone 3G/3GS is compatible to work in Korea? If so, which service providers?