All new userland jailbreak “jailbreakme” for iPhone 4, iPhone 3GS, 3G on iOS 4 / 4.0.1, iPod touch on iOS 4, and iPad on iOS 3.2.1 has been released!!. jailbreakme is a browser based iOS firmware jailbreak, meaning that you have to browse to http://jailbreakme.com from your iPhone, iPod Touch or iPad to jailbreak it.
List of iDevices that can be jailbroken [...]