Dev Team have already released WinpWN 2.2 for jailbreaking firmware 2.2 on original iPod Touchs and both iPhones. This guide is by Kiks52 on iPodTouchFans
If you have a MAC and need a guide for MACS: CLICK ME
NOTE: DO NOT UPDATE YOUR IPHONE 3G IF YOU ARE WAITING FOR A UNLOCK FOR IT.
Heres how to do it,
Jailbreaking Firmware 2.2 with QuickPwn
Before following these steps, make sure you have installed QuickPwn 2.2 for Windows on to your computer. You can download QuickPwn 2.2 from the link below:
QuickPwn 2.2 (Windows) http://torrents.thepiratebay.org/4527189/QuickPwn22.zip.4527189.TPB.torrent
Alternative Download links:
After opening QuickPwn 2.2, follow these steps:
You’ve now jailbroken Firmware 2.2 using QuickPwn 2.2 for Windows!