A new study has found that 14 percent of iPhone users upgraded to iPhone OS 3.1.3 in less than a week of availability, while a new hack to exploit Apple's latest update has been released. Released last Tuesday, iPhone OS 3.1.3 was a minor update, bringing a battery reporting fix, fixing an issue where third-party applications would not launch, and patching a number of security holes. [2]

The iPhone dev-team has released an update to their popular jailbreaking software, PwnageTool, for Mac OS X. The new PwnageTool - version 3.1.5 - boasts the ability to properly jailbreak Apple's recently released 3.1.3 iPhone/iPod Touch firmware. Before you get too excited, the dev-team does offer up this proclamation, "Unless you have personally observed a problem with the reporting of your battery percentage, there's no reason to update to 3.1.3". [1]