it has to do with linux because M$'s next release will make linux rise higher.
applpe's been doing all the gfx and stuff by using a thing called quartz, which is where the OS (and all the 3d effects) uses the video RAM to store all the OS and graphics memory, and not the ram.
im not looking forward to it, because, well, linux is free. im not paying 200$ for something i can get for free. besides, linux is faster.