I think it would be nice, however, if you were to get it, then people could argue that they want a dedicated MAC forum, and Linux, Unix, and it could go on forever, I want a mobile phone dedicated section, but it wont happen, so you know, you have to take that into consideration.
However:
David could make a sub-forum in the Gallery, named "Dedicated Imaging", something along those lines. I think that would work fantasticially, and then maybe, he could make a sub forum, named MAC's in the Operating Systems section, what do you lot thi nk?