If anyone feels like giving it a whirl, you can download the current version here.
It requires .Net 2.0 and MDX 1.1(Febuary 2006, I think). I haven't encountered any crash bugs, but it wouldn't surprise me. The thing is a mess of statics and events, so there might be some threading issues. I've tried to speed up the rendering, the largest model I made consisted of over 262000 vertices and while slow, it was still useable.