Just FYI...if anyone wants to try. I haven't had the chance yet.....
http://www.crispytech.com/2010/09/10/jailbreak-iphone-3gs-4-1-ios-with-pwnagetool-unofficail/
http://www.crispytech.com/2010/09/10/jailbreak-iphone-3gs-4-1-ios-with-pwnagetool-unofficail/