"Once you have the hardware power to do everything per-pixel, it becomes undesirable to implement rendering or lighting effects at the vertex level; such effects are tessellation-dependent and difficult to integrate seamlessly with pixel effects."
Oh hell yeah
I have seen the future and it is bright. . .mainly due to the fact that it's lit and shaded per pixel.
x-posted to machinima_lot, ut2k3, ut2004, videogameart