[gargoyle67]

That's not really true is it, That e-ink uses no power unless updating the screen, How does the Kindle know a certain amount of time has passed and to then change the screen saver ? (Magic) It's a bit of a misconception that they only use power turning pages, After all if that were the case there would be no need for an On\Off button would there ? A truer statement would be that they use more power when turning\refreshing the screen and a little when idling.