Russian hacker Vortex has released a beta version of a 3.0 Jailbreak. It is packaged in the Dev Team's windows Quickpwn software and reportedly works on the iPhone 1st gen, iPhone 3g, and iPod Touch 1st gen. It unfortunately does not install Cydia instead it only installs Icy. However you can install SSH via Icy and then install Cydia manually . On the plus side the download is only 3.2 mb because it is only packaged with Icy.

Be warned this is NOT Dev Team approved. This 3.0 Jailbreak while using the Dev Team's Windows jailbreak software and method is not using files packaged by the Dev Team.

http://www.modmyi.com/forums/iphone-...-dev-team.html