FYI, for those looking to unlock their phone... if you bought one online, you prolly are outta luck right now.
seems like the you can make it work like an iTouch... but no phone unlock hack.
if you buy it in the store you might have better luck finding an older model with a bootloader version 3.9 or lower
(firmware 1.1.1 and lower too)
as it stands, people are waiting for the 1.1.3 firmware release which might help shed some light on how to exploit the 4.06 bootloader that ships with the new iPhones