its back up but, the latest post is not the best news
Unfortunately, I haven't been able to get in touch with Nik for about a year now, so I'm not sure if his code will ever see the light of day. But I really hope so.
At the moment, I'm just too busy to work on Supermodel. I did a little work here and there on the 3D engine (nothing interesting to show yet) but my attention is consumed by work as well as numerous other personal projects that have become very important to me. In a situation like this, all that can really be done is to make the code public, which it is, and hope someone picks up where we left off. Supermodel needs a lot of work: a GUI, better rendering, and of course, improvements in the core emulation. These are not incremental changes but would require rewriting substantial portions of the code base, something which I just don't have the time for, unfortunately.