Greenpois0n, Chronic dev’s jailbreak tool is out. The greenpois0n iOS 4.1 jailbreak for iPhone 4, iPhone 3GS, iPod touch 4G/3G and iPad has finally been released by Chronic Dev Team. The greenpois0n jailbreak was originally supposed to be released on 10/10/10 at 10:10:10 AM GMT but was delayed due to limera1n being released. The greenpois0n jailbreak team had to save the SHAtter exploit, and instead use the USB bootrom exploit that Geohot used in the limera1n jailbreak.
You can download it for both windows and mac (mac download coming soon). This is an alternative to Geohot’s release of Limera1n. If you already used Geohot’s tool you do not need to do anything else. If you are not jailbroken yet, you can choose which to use.

Download Greenpos0n