Few days back Apple team has released iPhone OS 2.2 firmware update and to upgrade iPhone firmware you have to download iTunes 8.02.
As we were expecting that jailbreak should be available after 2-3 days of firmware release, Dev team has released QuickPwn 2.2 for windows and Mac. You can download QuickPwn 2.2 to jailbreak your iPhone or iPod touch.
Download links for QuickPwn 2.2
[We've removed the downloadable links from our site due to policy violation issues. Sorry for the inconvenience.]
Note: Do not use QuickPwn for iPhone 3G, use only the Pwnage Tool 2.2 if you want to jailbreak your iPhone 3G. Do not use any tool if your iPhone 3G has hardware unlock because it can lock your iPhone.