these were discussed here a few years ago. I finally got one. (31p7405)

plan 9 supports only vertical scrolling, correct?
is it that the intellimouse protocol only supports vertical,
and that horizonal scrolling needs different mouse protocol
(like the scrollpoint one)?
would mapping to button 6 and 7 be the way to go?
(looses the pressure sensitivity of the scrollpoint, though)

scrollpoint panning could be nice for page etc

its blue light in the scrollpoint is very light;
need to get used to the rather small middle button