The iPhone Dev Team who earlier provided a jailbreak for the iPhone 2.0 software but not completely unlocked for the iPhone 3G, which means you and me are still not free from the claw of the iPhone exclusive carriers.

According to the team’s blog post achieved a hack to the iPhone 3G baseband while leaving everything else alone. The approach/solution is through software which they explain it in their own post:

We have accomplished this by being able to execute our own code on the baseband that allows us to circumvent security checks and flash the baseband with older, disallowed firmware. Please note this has been accomplished using software only, the iPhone 3G has not been disassembled or hardware modified in any way.