@sbock: Thanks, glad you liked it. The physics sim is a rigid-body sphere that rolls around on the terrain. It's really tiny - I should make a new sphere model. It's bright red though, so if you look up when the demo starts you should see it...
@SiENcE: There's no engine test at the moment. We are developing a game with the engine though, so that should show you some of the capabilities: http://www.gp32x.de/board/index.php?/topic/56235-minigolf-game-devlog/page__st__90. Also, the engine is closed source as it will be used for commercial games (hopefully). There's a possiblity that I'll sell licenses for it though, when it matures sufficiently.