iPhone / iPod touch 3.1.3 IPSWs Supported by PwnageTool, Ultrasn0w, Redsn0w

Following the release of iPhone OS 3.1.3 for iPhone and iPod touch, the iPhone Dev Team revealed that PwnageTool 3.1.5 for Mac OS X would let users update safely, preserving their existing jailbreak and ultrasn0w unlock. However, not all versions of the iPhone and iPod touch are supported, wh... [ read more >> ]