I still use the 68k application AmiFIG on my OS4.1 systems - recently I learned that this software has been ported to AROS in the meanwhile and is to be developed further in this enviroment.
http://sourceforge.net/projects/amifig/The sources are accessible at sourceforge and some MorphOS developer already did a "backport" to MorphOS.
http://aminet.net/package/gfx/edit/amifigRequest: Is there any chance that someone of our OS4.x-developers might be interested in a building OS4 version? It would really be awesome to have a native version -
and there is potential for further developement and more features for future versions by the AROS maintainer.