Cloth collision detection?

Hi all,

I am trying to build a system where I can throw a cloth ball (looking like a ball of gloop) at an object, e.g. the ground, and spawn a splatter texture where it $$anonymous$$t.

As far as scripting is concerned, how do I detect where and when the cloth object collides? When the cloth simulates the gameobject's position stays in the same place, although the mesh falls. Also I would like to spawn the cloth ball with an initial velocity - the documentation for InteractiveCloth.AddForceAtPosition isn't great - how do you specify direction?

Any help appreciated, Simon.