Greenpois0n can perform untethered to iOS 4.2.1 jailbreak

As you know, the world's Jailbreak has always been very active, especially now since a few weeks ago Apple released the updated IOS version 4.2.1. All active hackers have dedicated hours to perform the jailbreak safely and untethered, although only the Dev-team has achieved redsn0w tool. However, the Chronic Dev-Team and is responsible for the tool called Greenpois0n, announced that the next