GNU Hurd
GGI 2.1.x runs on many Operating Systems: GNU Hurd, Linux, *BSD, System V, Mac OS X and MS Windows. Support for more hardware platforms has been added. NetBSD even created a binary package for NetBSD/Vax! A new GGI library on top of libgii called libgiigic has been added. It allows to combine user actions with events at run time.