Human Head's Mike Werckle updated his .plan with a giant update on RUNE, their Unreal 2 engine game of viking glory. There's a whole lot of info in here about their new skeletal technology - here's an excerpt:

I think you all will be very happy with the complexity of enemies that we are adding to RUNE. In the old days we used to make "enemies," or "monsters," and everyone you encountered looked exactly the same. With RUNE'S new skeletal technology we are able to have a huge varitey of meshes deformed by the same bones, and which share the same set of animations. But with the added complexity we have found a need to expand our definition of what an enemy is.