iOS 4.2.1 Jailbreak: Greenpois0n for iPhone 4, iPhone 3GS, iPad and iPod Touch

The Chronic Dev Team has released a new version of its greenpois0n for IOS. With the new version, which is offered on the Internet for free download, can the iPhone 3G, iPhone 4, iPad and the iPod touch generation 2, 3 and 4, and Apple's Apple TV set-top box with the 4.2.1 iOS use of third-party software unlock. Unlike before, the new jailbreak is untethered. He remains so after reboot get help.