I have been working on implementing physics in Wintermute and have came up with a small sample 3D project. Basically it is just a ball dropping. Choose the height to drop the ball. For extra effect, drop the ball while making the ball move by clicking on a spot on the plain, or using arrow keys. It is a very basic project, and not sure how physics in WME might be useful, but I really see a lot of potential in the Wintermute engine. By the way, this is NOT a plug-in, it is just plain code in the engine .
(Make sure to extract files before playing