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 sh

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.