iPhone Dev Team has finally released the much awaited Pwnage Tool for Mac, the program allows untethered jailbreak for iOS 4.2.1 iPhone3G, iPhone3GS, iPhone4, iPhone 4 – Verizon, iPod touch 3G, iPod touch 4G, iPad and Apple TV 2G (black). Latest release of pwnage tool is based on the very same exploit found by chronic dev team, which they implemented in Greenpois0n.
PwnageTool also includes two very recent improvements to the 4.2.1 JB: iBooks was just fixed by @comex and @pushfix last night so that it works as intended on DRMed ...