Mac OS X: Last week Apple pushed out a minor update to the iPhone OS, and, naturally, the update re-jailed any jailbroken devices. Yet again, the iPhone dev-team is back with a new version of PwnageTool that's compatible with the latest update.

Take note that the dev-team's official stance on the iPhone 3.1.3 OS update is "skip it" unless you've had battery problems (the update offers little more). If wanted to go ahead with the update anyway, this new version of the PwnageTool (3.1.5) will help you safely upgrade your jailbroken device.

Be sure to read the full dev-team post for details concerning your model before diving in. PwnageTool 3.1.5 is a free download for Mac OS X only.