At Rill Architects we run ArchiCAD on Mac OS X. If you work at Rill, this is your stuff. If you don't, but you work in ArchiCAD, you may find something interesting. Anybody else, I don't know.
Materials for rind, flesh, and stem. Expression can be happy or sad. I've had this for nine years; I finally took the inline material definitions out. Download (AC11)