If you have an Apple iPhone 3G and want it unlocked then you’ll have probable waited patiently for the iPhone Dev Team to come up with the unlock tool, and they accomplished that a couple of days ago.
Now while the unlock instructions are fairly easy to follow so the iPhoner can rip away AT&T’s exclusivity on the Apple iPhone 3G, there are some who have failed to get this to work.
To follow just how well this unlock of the Apple iPhone 3G is doing you can hit up The Yellowsn0w Report whereby you can check on the general status of unlocks and the carrier of your choice. You’ll also need the current version of Yellowsn0w which is 0.9.5
Source — pcworld