IOS Jailbreak - Greenpois0n 1.0 RC6.1 Released

The Chronic Dev Team has its untethered jailbreaking software for recorded iOS 4.2.1 with Apple hardware revision. Greenpois0n 1.0 RC6.1 eliminates problems with iBooks, as well as with the Apple TV 2.
The Jailbreaking Tool greenpois0n 1.0 RC6.1 available on the official website greenpois0n.com for both Mac and Windows users to download. It fixes including a problem with the DRM of Apple's iBook