Better late than never! The Sn0wbreeze developer, iH8sn0w, has rolled out Sn0wbreeze 2.1 to jailbreak iOS 4.1 devices. Sn0wbreeze 2.1 tool supports iPod Touch 2G, iPod Touch 3G, iPod Touch 4G, iPhone 3G, iPhone 3GS, iPhone 4, iPad and Apple TV 2G.
If you haven’t jailbroken your iDevice with Limera1n, GreenPois0n, Redsn0w 0.9.6 or PwnageTool 4.1, then you can use Sn0wbreeze 2.1 to jailbreak iOS 4.1 firmware. It works on Windows platform and requires .Net framework.
Please note that Sn0wbreeze 2.1 won’t work on any iOS 4.2 firmware including iOS 4.2 Beta and iOS 4.2 GM 1, GM 2.
Download Sn0wbreeze 2.1 for iOS 4.1 Jailbreak
[We've removed the downloadable links from our site due to policy violation issues. Sorry for the inconvenience.]
If you want to know the status of iOS 4.2 jailbreak, read here and here for more details.
Update: Download Sn0wbreeze 2.2