They have the interface design of both edit* and combustion so basicaly the woulld have to update it and write it for mac but i think it would be better if they wrote it in linux just to be safe.
I wonder if autodesk even knows what the have I am sure that most if not all of the discreet people are long gone. The last I hearrd of the combustion team they where in apple but maybe not anymore and patel and others in avid.
Just imagine smoke with a combustion interface and an a edit* for editing.
Richard