I hope those D3 system specs are just as unrealistic as those of vista (800mhz, 512mb ram) ... otherwise they'll just be releasing another game with as poor graphics as wow ... which even after the 3.0.2 patch looks like a joke.
But I suppose they'll do what they did with diablo 1 and 2 - set a fixed, low, resolution. In d2 lod you could increase it from 640x480 to 800x600 - so I suppose in d3 you can choose between 800x600 and 1024x768 and shader version 1.1 or 2.0 ....
It's kinda sad really. Blizzard's got all this money, all this developer talent, and those brilliant movie animators. But they still haven't figured out how to make a game look decent. And the screenshots I've seen so far don't look promising. Basicly they've just made everything dark and murky. Probably to make it harder to see how poor the actual graphics are. Oh well.