ILiberty+

A universal GUI tool to jailbreak, activate, as well as unlock, it also has some extra functionalities.

iLiberty was first developed as a personal tool for George Zhu himself, later it integrated iPlus (a CLI utility developed by AViegas) and became a public tool, its name was changed to iLiberty+.

iLiberty+ is available on both Windows as well as Mac OS X (named iLibertyX).

iLiberty+ is a freeware and can be downloaded from the following sites:

iLiberty+ for Windows: George Zhu's BLOG iLibertyX for OS X: theiphoneproject