The Chronic Dev Team has released their new jailbreak for the iOS 4.2.1. This jailbreak is untethered meaning you can boot your iPod Touch or iPhone without having to rely on your PC. Greenpois0ns jailbreak now is up for Linux, Mac and Windows based systems. However Apple will be releasing their new iOS 4.3 any time now. Once Apple sends out their new iOS we will be waiting for the new jailbreak to be released so we can all upgrade our firmwares and keep our jailbroken goodness. For those who do not know what jailbreaking means; Jailbreaking allows the use of software that Apple does not allow in their App Store. The U.S. Copyright office has ruled that jailbreaking an iPhone or other mobile device is legal and will not violate federal copyright laws. So what are you waiting for? visit Greenpois0ns website and take part of their new release.