Worried about Jailbreak? Can't Unlock? Here you go, ToolJail has been Updated and it will really helps you to Jailbreak & Unlock iOS 4 for iPhone and iPod Touch Owners, It brings updates for Jailbreak and Unlock guides, Jailbreak tools for the newly release iOS 4, Important Instructions to Jailbreak and Unlock iOS 4, Downgrading to 3.1.3, and Also Teach you how to put your Device in DFU Mode.