GGI stands for General Graphics Interface. Part of this project is to develop libggi, a portable graphics library, and XaoS's GGI driver uses that. It is experimental, since the API of libggi is not stabilized yet. There are some problems with keyboard handling–the shift key doesn't work yet.
Everything else might work well, but there are no guarantees. It is alpha quality software.
GGI driver was written by Jan Hubicka, 1998.