matterial Junior is still under heavy development. And thus has not been released (to
the public yet, for download). It is expected that a release, suitable for the
general public, should be available before March 2002.
The current version of matterial Junior (which has yet to be released) is made for
GNOME. So all you basically need to run it is a system that can run
GNOME. We know that matterial Junior will work on
GNOME on Linux. It is also likely, but not tested, that
matterial Junior will also work on GNOME for MacOSX,
Windows, HP-UX, FreeBSD, SGI IRIX, and Sun Solaris, as well (with or without some porting).
(If you get matterial Junior to work on any other platform, please
tell us about it.)