Chances: Lua and multi-core?

[askok@...]

An article at www.osnews.com about "some mental adjustment" needed for developing multithreaded 
(read: multi-core) applications, made me think: would it be hard to have Lua core itself, automatically 
apply those techniques to whatever application level code is being run?

At least, would it be possible to have co-operations actually running in separate threads, or are there 
some no-can-do issues there?

I am not asking for performance benefits of this (yet) and I am aware of being able to run multiple states, 
in different threads, sure.

-asko