In short: the device successfully “disappears” from your conscious – like a regular book — and leaves you with just the story.

I found this bit interesting (and scary):

Beyond its current consumer-centric design, we think Kindle has huge potential in education and vertical applications. School children today carry back-damaging backpacks full of heavy textbooks that would be trivial to replace with one 10.3-oz. Kindle. A 2006 BBC News article reported that half of UK school children suffer a back injury at some point due to carrying schoolbooks, and 8% have back problems that affect school attendance; other studies show school children often carry book loads approaching 60% of their body weight. The health implications are obvious.

We think the first educational publisher to get on board is going to make a killing selling Kindles to schools. Content can be updated at any time, wirelessly, making paper textbooks obsolete the day they’re printed. Reliable subscription revenue for publishers, lower costs for schools, and better student health could come together in one, small package from Amazon.