Still have any doubts about how amazing the iPad HD's 2,048 x 1,536-pixel Retina-ish display is? No more: check out these amazing comparison shot of the incoming iOS game Food Run.
Expand the image to see the difference.
Food Run is entirely drawn with vectors, so you it can scale to any resolution. On the left you can see how it will look on the iPad and iPad 2 display. On the right, the iPad 3. Truly impressive.