Ultrasn0w: iPhone 3G unlock for OS 3.0 is out!
Ultrasn0w is out! The Dev-Team has done it again!
If you are using the 3G iPhone (not the iPhone 3G S) then you can use Ultrasn0w to unlock your OS 3.
The software unlock also works with the original iPhone but not yet with the iPhone 3G S. For people with the new 3G S, you just have to wait for a little while.
As always, the software is free but use it at your own risk. All you have to do is to follow Dev-Team’s instructions here.