I'm going to China next week for three weeks. I was planning on buying a Chinese SIM card and paying for minutes there. But it just occurred to me that my iPhone may not recognize a Chinese SIM card. Do I need to jailbreak it in order for this plan to work? Is it possible to call AT&T and have them remedy my situation so I can use the phone in China? And if I do need to jailbreak it, can someone point me in the right direction so I know the best way to go about this? I have a 3G running the 3.0 software.