> as far as I know the public version is not on the same level as the version used in MorphOS.

Available since MorphOS 3.0 on http://www.morphos-team.net/downloads:

http://www.morphos-team.net/files/src/3.0/ambient.tar.bz2
http://www.morphos-team.net/files/src/3.1/ambient.tar.bz2
http://www.morphos-team.net/files/src/3.2/ambient.tar.bz2
http://www.morphos-team.net/files/src/3.3/ambient.tar.bz2
http://www.morphos-team.net/files/src/3.4/ambient.tar.bz2
http://www.morphos-team.net/files/src/3.5/ambient.tar.bz2
http://www.morphos-team.net/files/src/3.6/ambient.tar.bz2
http://www.morphos-team.net/files/src/3.7/ambient.tar.bz2
http://www.morphos-team.net/files/src/3.8/ambient.tar.bz2
http://www.morphos-team.net/files/src/3.9/ambient.tar.bz2