Remember the kid who first unlocked the original iPhone back in 2007? Well he is back again! and this time he is the first one to release unlock for iPhone 3GS running on firmware 3.0. The unlock that Hotz released is currently for Windows only (minus Windows 7) and he mentions that the jailbreak for Mac is coming soon. Follow the steps below to unlock and jailbreak iPhone 3GS to make it work with any carrier.