I'm always amazed that people think the iPad display is good. The text always looks blurry and poorly antialiased to me which I attribute to the fact that it has quite low DPI. Further to that the minute I walk out the door I can barely see anything on the screen - it's just not bright enough. I love the iPad in a few ways but the display is one of the things I dislike.
The iPad has the ppi of a 15" screen with a 1680x1050 resolution. No low ppi count by any means. It uses the same non-subpixel antialiasing as OS X and tests showed that it can get pretty bright and pretty black. Certainly no worse than a laptop screen.
