Physics Limits

So there's a limit on how many linked prims can have physics applied to em. 31. Anyone who has tried to apply physics to an object with more than 31 prims knows this, heh. I had a couple questions, though...

Why do we have a limit on linked physical prims?

and...

Can we uh.. Up the limit a bit?


Oh, and an extra special 2-part bonus super question that I don't expect an answer to:

Andrew mentioned Havok 2.0. Is there a uh.. time frame on when we'll be getting this, and what are some of the changes over the engine we're using now?

I have created a vechile with andrews vehicle script and it is up to 57 primitives. The whole thing is physical and it works no problem. I initally got it to work on 0.5 I think, maybe earlier.