Have you seen the Sony Digital Paper System[0]? It seems to fit the bill perfectly but the price point high.
[0]: http://pro.sony.com/bbsc/ssr/product-DPTS1/?PID=I:digitalpap...
Apparently, it doesn't scroll, but I'm sure scrolling takes a lot of energy to do all the refreshes. I assume that a large, hi-rez reader can offer scrolling, thinness/lightness, or long battery life, pick two.
I tried a lot of options before just settling on an ipad for a reader when it comes to anything that resembles a technical manual or text book.
I'd be interested in knowing if anyone has any other better suggestions, as far as that goes.
I guess you could go the route of bringing an external lithium ion battery w/ usb charger cord, but those are always kind of kludgy
Big plus that kindle have over others is e-ink that will make it easy on eyes. It is hard to read (and not good for eyes) on other devices for long.
Unfortunately, all the books I really want to read with my eyes are too heavy to tote around or take on plane trips, which is almost the only time I have time to read them.
I need a REALLY GOOD reader. I wish I had a lightweight, clipboard-sized, hi-rez, B&W, PDF reader with the flick scrolling, pinch resizing, etc. of an iPad with the battery life to last a whole delayed flight from San Francisco->Tokyo->Singapore, door to door. I might be able to make do with a jumbo tablet if the USB ports that some airlines now put in the seats can power it.