I just wanted to give a comment about supporting distributions. Its really not that hard, linux distros for desktop computers running intel x86 cpus are all very similar. All they have to do is choose one official distro to support like ubuntu or debian and the community will get it running on others.

With that said i dont see them officially supporting linux and considering the low spec graphics in most macbooks the osx userbase will be really small if they cant get the game running decently on those intel graphics. Still, dont get me wrong, i would like to see that happen. I have friends on osx and who knows, perhaps that version might be easier to get running on linux distros aswell.