gworkspace.app 0.9.4-1build2 (amd64 binary) in ubuntu disco

 GWorkspace is the official GNUstep workspace manager. It is a clone
 of NeXT's workspace manager. GWorkspace is probably one of the most
 useful and usable workspace managers available on any platform,
 owing to its well-designed interface and the natural, consistent
 design that it inherits from the GNUstep framework.