Friend has told me he has figured out how to make a ipad wifi become ipad 3G. I can't believe this, but he really make it ,that shocked me. But he is free and tell me he get help from other device. He take it out and I begin to know exsiting such a stuff called gmate. I think some of you mustn't know this. My friend has made ipad jailbroken and this stuff needs this jailbreak.