clipped from: yellow-sn0w.blogspot.com   

Pwnage tool 3.0 - Pwnage tool 3.0 windows is the latest version of the iPhone jailbreaking utility PwnageTool from iPhone Dev Team is now available, because the dev team is working hard to bring us better jailbreaks and jail-breaking tools. This new PwnageTool v 3.0 supports jail-breaking the new iPhone firmware 3.0 on all versions of iPhone and iPod Touch devices but this pwnage tool 3.0 is not supporting the new iPhone 3G S.

Note: Do not PwnageTool 3.0 if you are using yellowsn0w as Dev team is working hard so the new iPhone unlock UltraSn0w will be available in few days.