Yesterday I finished the unlock process with AT&T, I followed the instructions that they had e-mailed me the day before but didn't get the "Congratulations, your iPhone is unlocked" message. After several more attempts I started searching this forum and the internet and figured out what I did wrong. The instructions e-mailed from AT&T said to wait 24 hours then backup and restore your iPhone to finish the process. In iTunes there are two buttons on that page with the word RESTORE as part of its label, one is right next to the Back Up Now button and the other is in the shaded panel above that next to the Check For Update button. I was using the Restore Backup button not the Restore iPhone button above. As soon as I used the Restore iPhone button the process started and I got the "iPhone unlocked" message part way through the process. This seems to be a common mistake. When I called AT&T later to confirm that the unlock worked I mentioned to the Customer Service rep that they should make the instructions a little more explicit for dummies like me and she said it is a common complaint so I guess I am not the only one to make it.