Any ideas about the performance of the new Minix 3 mu-kernel
architecture? It would be interesting to have some idea of the
penalties involved when placing device drivers (maybe even
interdependent ones) into user-space. What optimisations have been
taken in the kernel / design to address these issues?

Any poniters gladly accepted. I just checked the Minix 3 website and
the at cs.vu.nl but didn't find any "official" papers yet apart from a
masters thesis from last year. Any plans to spread the word further in
the community?

Cheers, Chris