Just in case folks haven't seen iPhone/iPod Touch OS 3.1 is now jailbroken, but NOT available for 3GS/2G iPod Touch/3G iPod Touch users. At the moment it is only for iPhone 2G, 3G and iPod Touch 1G ONLY.
http://modmyi.com/forums/iphone-news/684623-iphone-os-3-1-jailbroken-not-iphone-3gs.html
