The big momma of all iPhone unlocking tools to date known appropriately as 'Pwnage'. this software update enables an iPhone to install unsigned firmware, which means hackers will be able to integrate their latest cracks/unlocks/applications directly into the newest firmware, leaving the user with a 'pwned' iPhone (for the want of a better adjective) that just needs to restore the hacked firmware through a file in iTunes. Guess jailbreaking an iPhone has just gotten so simple, even your dog could do it!
