About GNUstep
It includes an excellent application called Gorm for RAD (Apple Software Design Guidelines). More about the Objective-C Language. The currently used window manager is Window Maker.

If you are an OPENSTEP, Cocoa developer and want to port your software to GNUstep and release it as Free Software, don't hesitate to contact me. Please contact this page if you have wishes about the live CD or if you are curious about the next version. Here is a very well introduction to the environment.