iH8sn0w has put the finishing touches on the latest version of sn0wbreeze, which allows users to roll a custom ISPW on Windows to jailbreak their iDevice (similar to PwnageTool). It is untethered, and works across every make and model imaginable.
sn0wbreeze 2.1 (Works on 3.2.2/4.1 [All Devices/Bootroms/Models]) — http://ih8sn0w.com
- iPhone 3G/3G[S]/4
- iPod Touch 2G/3G/4
- Apple TV 2
It doesn’t work on iOS 4.2 yet, but iH8sn0w plans to support it after the official release drops.