The TkGS project tries to follow an Open Source philosophy, in which everyone can freely contribute. For now it is still at early specification stage so most contributions will certainly be suggestions and constructive criticisms. If you want to take part into this project, the first thing is to subscribe to the mailing list. The second is to contact Frédéric BONNET <fredericbonnet@free.fr>, which is the initiator and coordinator of the TkGS project.
Thanks to the efforts of Mo DeJong, TkGS now has a working build environment based on GNU tools, and kindly put by Ajuba Solutions (née Scriptics) onto their CVS server.