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This technology is exciting because it might lead to ereaders with refresh rates fast enough for smooth video, or even better looking e ink. I don't understand how it can directly lead to cheap "disposable" ereaders though because the paper requires electric fields be applied to it in a very precise way. Perhaps the researchers were referring to throwing just the paper screen away and not the entire device. That would be nice and actually moves us away from disposability. You spilled juice on your ereader? It dosn't matter, just change the 10-cent paper screen.
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