GameXS is still in development. It'll just be a while before we release anything. We're really busy working on our website, our engine and our games, but after some of this clears up, we'll devote our time to GameXS and the FPSC Free Media Browser.
I do have an idea, though... To help with the creation of GameXS, we'll need the FPSC Free Media Browser pretty much finished. In order for that to happen, the database of all the free models and media released here would have to be complete. If we can get a couple volunteers to help out with that (5 pages takes about 20 minutes), we could blaze through the near 100 pages of models and media. If you'd like to help out with that to speed the development of GameXS along, let me know either here, or through email.
@Random Color Object,
There are a couple publishing companies that have worked with FPSC titles in the past, such as the one for Anderson, and for Luke314Pi's Game. I'm not sure who they went through for publishing, as it's been a while since I looked at their games, but you should check into that. Like JRH and djmaster have mentioned, GameXS will allow you to share and sell your games, as well as any media you create. If you're familiar with Valve's game distribution client, Steam, picture that, but for independent game developers, sharing both games and media.