[mattyb]

I should have mentioned that I also have an iPad. I basically use the Kindle as a small paperback replacement, and use the iPad for everything else.

I whip out the Kindle when I want to blow a Saturday breezing through the latest John Sandford cotton candy or awesome-seeming fan fiction, and I read most technical books and my Instapaper backlog on my iPad. So maybe my desired set of Kindle features is smaller than the average Kindle user, or maybe this discussion is proof that I have no idea what the average Kindle user wants.

- I've owned my (4th-gen, non-touch) Kindle for ~9 months, and it has held up just fine. Maybe if/when I break it, I'll wish for more robustness.

- I've never lent books; maybe I should!

- I haven't been without power for long enough to substantially discharge my Kindle's battery yet. I went to Belize for 9 days with it and had power the whole time, although I did more diving than reading ;-)

- Nope, I've never longed for random access. I've flipped through paperbacks before, but that's a feature I can easily live without.

- Nope, I definitely don't miss color. When I want to lay back and feel like I'm reading a little paperback from my neighborhood bookstore, I reach for the Kindle. When I read a textbook and inspect diagrams or want to look at pretty pictures in Flipboard, I grab the iPad.

I'm just weird with tablets though, so this data point may be worthless. I've considered buying a Nexus 7 (or its rumored successor) just to lay in bed and read code, and the official GitHub app for Android is the best tablet code-reading experience I've found.

[ghshephard]

I understand now, and I think I see where you are coming from - but I think we're speaking at cross purposes to each other. You don't want these features that I've described on your kindle, because you don't see your kindle as serving 100% replacement for all books.

I think the point that Gruber, the OP, and I were trying to make (though I could be wrong) - is that we believe the ultimate goal, the end-game for a kindle, is to be in every way as good as a book. Books don't run out of battery, don't shatter when you sit on them, textbooks have color, and can be flipped through.

I think you'll agree - that unless the Kindle has (at least) all of those features, you won't be able to replace 100% of your book usage with one - and you'll need to turn to other sources (either your tablet, or paper, etc...)

Power, for me, is probably the killer feature. I can be careful with the kindle, I rarely read/use textbooks when I'm not taking a course, and I can work around (painfully) the ability to flip through a book - but particularly when we are heading off grid for a while, trying to keep the kindle charged is always a hassle, and I'm always dragging along at least one, if not two hyperjuice batteries in my packout (though, admittedly, one of them also serves to keep my iPhone charged for GPS/Map usage)

Of course, on the flip side, I'm bringing my entire 200+ book library with me....

[efsavage]

I don't see the value in a "100% replacement for all books" for the same reason I don't see any value in "100% replacement for all cooking utensils" or most other things. I can do a lot of things with my favorite knife, but that doesn't mean it would be better with a can opener attached to it.

Obviously longer battery life would be fine, but I wouldn't trade any size or weight for it. A color screen would be fine but I wouldn't trade any contrast or battery life or additional expense for it. A stronger case would be fine but I wouldn't trade cost or weight for it, and so on. It's a great device for reading novels, papers, long blog posts that I send to it. My ipad is a great device for movies and magazines. My computer is a great device for doing research and copy/pasting code snippets and playing games. My radio is a great device for listening to music or news in the car. My TV is a great device for watching movies and shows.

That's a mere 6 devices that pretty well cover my information and media needs. Not too bad considering I use at least twice as many different tools to make dinner.