As you may know, the current generation of book readers uses the E-Ink technology, which currently does B&W 800 x 640 on a flexible substrate. They project that color E-Ink devices will become available no earlier than 2011. Hi-res is important: readability studies shows that paper with 600 dpi is the gold standard. a 600 dpi 8 x 10 page is 4800 x 6000 pixels, which is still a pretty big image even for today’s computers. I suspect that E-Ink devices capable of displaying hi-res PDF will be... read more