The real reason is that Apple's OS is not only better at handling the higher DPI but looks BETTER the higher it goes and at the same time, Microsoft's OS looks worse the more you try to scale it to a high DPI system.

Microsoft actually created their own fonts(think Arial) and rendering system for the sole purpose of making them look crisp on a low resolution display but at the same time they have painted themselves into a corner. They would have to change their GDI APIs to adopt a more Applish system and that would cause a whole slew of software compatibility issues. It's a chicken or the egg style problem.

See: http://www.joelonsoftware.com/items/2007/06/12.html

You better patent the technique now Alan before the system changes from first to discover to first to file. Nvidia could just patent it and then you wouldn't be able to use it either.

Orange Juice is the death knell for almost any keyboard. I had to eventually throw away my old Atari 800 after spilling OJ on it... no amount of taking it apart and cleaning it would keep some of the keys from sticking in the down position.