First, I just wanted to tip my hat to the Newton developers and site maintainers...I've been using the Newton API for years, and I'm pleased to still have somewhere to go in case I have problems or questions. The engine has worked so well that I've never had to abandon it for anything else.
Having said that, I've been programming a 3D physics puzzle game for a long time; and while it's still not done, you're all invited to check it out. It comes with a fully functional editor as well.
Sign-up: http://www.gamieon.com/alpha/
Forums: http://www.gamieon.com/internal/forums/ (Requires sign-up)
Screenshots: http://www.gamieon.com/dmscreens.htm
Official Page: http://www.gamieon.com/dominoze.htm
I'd especially like to hear any advice on the game's camera controls. They're terrible, but I don't know how to make them better. Also, being an alpha, it's buggy; but the game will report crashes to me, and you can post in the forums if you have questions or issues. Attached is a screenshot of the first level unsolved.