Some of you may already tried that out, but still, there are many others who are not sure whether iPhone 1.1.1 is fully unlocked. (I mean it will be able to use carrier other than AT&T). I am now trying to upgrade and unlock my iPhone to 1.1.1 since I am also not sure whether the IPSF is worked or not.

Note I do not intend to promote IPSF, and I believe iPhone dev Team is going to release the free unlock tool soon. This is only for demonstration to show you the progress from upgrading to unlock. Do not try it if you have unlocked with free solution (anySIM, iUnlock, Geo hardware unlock etc.).

The unlock starts now. If you are interested, please click the above link.