"In a world where educational opportunities are often disproportionately allocated, it's exciting to think that today anyone with an Internet connection can download any of over one million free public domain books"<p>I've always thought the OLPC should have pursued a cheap e-reader for public works, rather than a general-purpose $100 ($200 in practice) laptop. You should be able to make an LCD-based e-reader for $50 [1] already. A $20 device doesn't seem far out either.<p>LCDs can also be bistable, so power is only used when the page changes: <a href="http://www.nemoptic.com/" rel="nofollow">http://www.nemoptic.com/</a> . (They still won't look as good as EInk's electrophoretic displays, but the $ savings are non-trivial.)<p>[1] E.g. datapoint: Coby's portable DVD player with 7" color LCD is $60: <a href="http://www.amazon.com/Coby-TFDVD7008-7-Inch-Portable-Player/dp/B001PRKKB6/ref=sr_1_3" rel="nofollow">http://www.amazon.com/Coby-TFDVD7008-7-Inch-Portable-Player/...</a>