That is indeed a good question... I imagine it would take a LOT of work, and we don't even have any Mac developer-type people in the community that I'm aware of. I think the mac patch changes a bunch of things in the .exe, so it would have to be a from-scratch project.
Also, for future reference, when responding to a visitor message the usual procedure is to post it on the board of the intended recipient, that way they get a little notice showing you replied.