Josh Quittner at Time had a chance to play with 3Qi display and he wrote an interesting article with some new information.
1. It has better DPI than Kindle.
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Actually, it was better than E Ink: My Kindle only handles 167 DPI (the measure of dot pitch, or crispness of the font); the Pixel Qi, Mary Lou said, does 205 DPI.
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2. The screen quality is as good as that of a Kindle.
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In black and white, reflective mode, I couldn't see any difference when we held up the Kindle alongside the PQ-modded Netbook. Both were easy to read without any flicker or speckling.
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3. It will be cheap to produce and the optimized device will run about 40 hours per charge.
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The screens are cheap to produce, too—well under $200, she said. Such a device ought to enjoy 40 hours or so of use as an e-reader, between charges.
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Overall, it sounds pretty good and hope to see some ebook reading device with this display soon. It will be a good competitor to Kindle DX or plastic logic reader.
[Source]
http://nerdworld.blogs.time.com/2009...ing/#more-1633