iJailBreakMobile is a new branch of the highly successful iJailBreak utility for desktop computers. iJailBreakMobile allows iPhone and iPod Touch users on jailbroken versions of firmware 1.1.1 or 1.1.2 to automatically update to and jailbreak the newly released 1.1.3 firmware. It does not require the use of a computer and can be run from the mobile phone itself through the Installer.app, regardless of what operating system your computer may be running on, thus preventing platform compatibility issues. Jailbreaking is the process which allows you to install unofficial third party applications on iPhone or iPod Touch.

To use this application, you must start with a jailbroken firmware version of 1.1.1 or 1.1.2. To downgrade from v1.1.3 to v1.1.1, please visit ijailbreak.com/downgrade113. To downgrade from v1.1.2 to v1.1.1, visit ijailbreak.com/downgrade112. iPod Touch owners need only follow page 1 and then visit JailbreakMe.com to jailbreak the device. iPhone owners should do the first and second pages (which includes jailbreaking). At this point, your device will be ready to use iJailBreakMobile.

To read the complete guide on the installation and upgrade process, visit the homepage of the software or download this press release [PDF] which contains all the details.

Note that while all third party applications are deleted after the upgrade, their settings are not, so when you re-install them, any settings or high-scores should appear as before.