Anybody here use any of the e-ink readers (Kindle, Sony, etc) and can give an opinion on how the reading experience compares to reading on the iPhone? Specifically, I'm wondering if there is any truth to e-ink proponents' claim that e-ink is "easier on the eyes." They keep saying e-ink is better for reading than LCD screens, but I have a suspicion that they are thinking about regular computer monitors, not the iPhone screen. Personally, I feel iPhone's screen is less tiring on my eyes than computer monitors. It it just me or does anybody else feel the same way?