"what if all games supported
OpenGL as well? Would this allow new games that uses new SM 4.0, &
such to work under WinXP? I'm not up to speed on how OpenGL works, or
if it can use the hardware effects that DX10 uses to get that new
eye-candy. If it can produce the same effects as DX10 using Nvidia's
8xxx, or ATI's R6xx GPUs, can it work under WinXP"

I was also wondering about this. Especially OpenGL 2.0 supposed to be a
big-deal, like DX10, right? Anyone here have answers to these questions?

GT