Having been trained a graphic designer.. it's true that we all used Macs..at least that was a few years ago.. i don't doubt that its still mostly the same now.. although i think PCs have made some inroads, but most graphic designers dont play games anyway. Anymore there's no reason to use a Mac rather than a PC to do design work, seeing as how all the major design software works on PC(it didnt used to be like that). Porting the engine from D3D to OpenGl is a monumental task, and would require a rewrite of the renderer, etc. That would be be a waste of time for most A6 users who could care less about Mac support.. in the meantime would they have time to do the regular updates and new features we all want? i doubt it.