iPod touch (4th Gen)
This all-in-one untethered jailbreak for iOS 3.2.2 is finally here. Available for both Windows and Mac OS X, GreenPois0n is USB-based one click app based on the limera1n exploit, like Blackra1n and Spirit which can jailbreak (not unlock) iPhone 4, iPod touch 4G on iOS 4.1, and iPad on iOS 3.2.2.
Download GreenPois0n for Windows
Download GreenPois0n for Mac
The is a cydia update in the works.
Drop a comment if any issues persist...