Really?

Also, smaller is better, unless you're talking about a screen. Monitor sizes grew over time. I would look at thickness and weight.

My guess is that it is larger in order to address the problems users had with holding on to it and using the paging buttons. Before if you held it by the edges, you inadvertently pressed the buttons.

Books are already portable, so having a separate device doesn't really work. The vast majority of people are single-threaded on books - they're reading one at a time and rarely are in a situation where you'd need another immediately. That same vast majority is unlikely to reread the same book over and over again.

There's no real desire to load your entire library like you did for music. Why? Because you're not going to access it. So it's all about current and future reading.

So, armed with that knowledge you then think about the price. The actual Kindle is expensive, and the downloads aren't that much cheaper than than the paper version and you can't resell it to reduce the final cost.

Yet, the real problem is the perceived cost is still amazingly high versus music. It's the per use cost that doesn't add up. Each time you listen to a song the per use cost goes down. Over time, that cost becomes extremely small. That just doesn't happen with books.

The e-ink technology is nifty but you'll need to do much more (e.g - Fforde's UltraWord http://usedbooksblog.com/blog/the-well-of-lost-plots-by-jasper-fforde/) to disrupt the normal pattern.

Seriously.