Just got one recently as well, was wondering the same thing. The top screen seems to look better than the first generation SP screen... but it seems like it might be a LITTLE less bright/clear compared to the new SP.
The bottom touch screen looks horrible, I think, in comparison to the DS top screen, and the new SP screen. But I just figure that's a way to keep down costs on the TOUCH screen, pricey things typically.
But, umm, yeah, heres another wondering the same thing...