> I'd appreciate if someone could list me at least what does not work

Ok, sorry about that, I did find the faq now (-;

I did also find the machine-status from acm.vt.edu, which is dated 14
November 1994. It optionally lists some models (some Powerbooks and
Performas) as possibly working with the "new ADB driver" and some more
(Quadras) when there's support for the 68040. Also, I did find that
there's mono X11R6 server - sounds promising, too.

I wonder how the plans are materialized in the current sources (I see
that Quadras and Powerbooks are identified and supported at some
degree, but does the machine-status report need upgrading yet?).