Site: http://stateofjailbreak.com/
Important information about jailbreaking with Sn0wbreeze:
Download Sn0wbreeze 2.0: http://ih8sn0w.com/index.php/products/view/sn0wbreeze.snow
Devices supported:
iPod touch 1G: Jailbroken on any firmware
iPod touch 2G MB model: Jailbroken on any firmware or use iREB
iPod touch 2G MC model: Wait for the SHAtter based jailbreak
iPod touch 3G model: Wait for the SHAtter based jailbreak
iPod touch 4G: Wait for the SHAtter based jailbreak
iPhone 2G: Good to go on all firmwares, jailbroken or not
iPhone 3G: Jailbroken on any firmware or use iREB
iPhone 3GS Old Bootrom: Jailbroken on Spirit or JailbreakMe. Add the following repo to Cydia: http://repo.woowiz.net and then install Spirit2Pwn. If you have a new bootrom iPhone 3GS DO NOT DO THIS. It will send your phone into a DFU loop. Only download Spirit2Pwn if you are on an old bootrom iPhone 3GS.
iPhone 3GS New Bootrom: Wait for the SHAtter based jailbreak
iPhone 4: Wait for the SHAtter based jailbreak
iPad and iPad 3G: Wait for the SHAtter based jailbreak
In this video I show you how to jailbreak your iPhone or iPod touch on iOS 4.1 using Sn0wbreeze 2.0.2. If you have any problems feel free to leave them in the comments below and I’ll do my best to help.