Dev Team Confirms iPhone 3.1.3 IPSW Jailbreak
Sticking to the rules of the cat-and-mouse game between the iPhone Dev Team and Apple, the former has been able to confirm that iPhone OS 3.1.3 IPSWs are jailbreakable by the group’s redsn0w jailbreak tool. Supported devices currently include the iPhone 2G (first-gen iPhones), iPhone 3G, and iPod touch 2G (second-gen iPod touch).