In the all too famous http://www.youtube.com/watch?v=L9A6QHLIWg0 video, there's a feature seen that I haven't seen much discussion about: Verlet surfaces (3:33 in the video).

This would be a wonderful addition to the game, and would be especially effective when walking/sneaking around bushes and grass. Has anyone poked around the Kit to see how they managed that effect?