DISPLAY - E Ink is much better for reading, especially in bright light. And, the matte screen on the Kindle doesn't smudge as easily as the iPad screen. However, the iPad has a gorgeous color display and once you get accustomed to it, reading is not difficult. I especially like the backlit display at night when reading in bed ... I can read to my hearts content and not bother my sleeping wife. Slip on the headphones and my full iTunes library is available while I read. If you want a device only to read books, the Kindle wins. If you want color and a display that shows book diagrams and pictures clearly, the iPad wins.
PAGE INTERFACE - I actually like turning pages on the Kindle much better than I do on the iPad. While the iPad has a cool page turning visual (it looks like the page is actually turning), the touch screen is far too sensitive and there is very little edge around the screen to hold on to. The result is that I'm constantly turning pages on the iPad when i don't want to. Kindle's buttons win this one hands down.
