The iPhone-Dev team has released a new tool to enable users to jailbreak and unlock Apple iPhone OS 3.1.
With Pwnage Tool 3.1 for Mac OS X, users can jailbreak both iPhone 3G and the first editions of the iPhone and iPod Touch. The tool, however, does not support iPhone 3GS or the second or third generation of the iPod Touch.
Jailbreaking allows iPhone and iPod Touch users to run applications that are not available through Apple's App Store. The unapproved applications can then be installed through programs such as Cydia and Icy.
There is no shortage of tools to unlock the iPhone, though using them may violate a user's Apple warranty. Earlier this year George Hotz, the hacker who made headlines for unlocking Apple's original iPhone, released a jailbreaking tool for iPhone 3GS with 3.0 firmware installed.
The iPhone Dev-Team said it will be releasing its redsn0w tool for Windows and Mac OS X some time in the near future.