There's an interesting article over at Gizmodo saying basically that E Ink E-readers are dumb. He prefer reading on LCDs (E Ink is better on the eye, but it's not important to him), power saving is not interesting (he reads around the house), he wants video, and color.

Obviously this does not suit everyone - people who read on the go, and outside surely appreciate E Inks superior readability and battery life. But it's an interesting article in any case.