The genius’s have got around the latest firmware upgrade limitations of the firmware upgrade Apple pushed out on to all the new iPhones and iPods. You are now capable of running the springboard again, which is a 3rd party application launcher. It was done using the TIFF exploit in Safari, which was used in the original iPhone hacks. How long till we see these babies unlocked and Apple releasing firmware 1.1.3?
For more info, hack over to the Engadget Blog.