That doesn't answer parent poster's question. iPhone 4 unlock will come in next 24 hours. It's in last round of testing. You can use ultrasn0w 0.93 to unlock

That doesn't answer parent poster's question. iPhone 4 unlock will come in next 24 hours. It's in last round of testing. You can use ultrasn0w 0.93 to unlock 3GS or 3G right now though.