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Bezos also unveiled a new ereader, the Kindle Paperwhite. It features three display stacks: a patented light guide, capacitive touch, and a paperwhite display. Read Rachel King's blog for the details .
It's 9.1mm thin and 7.5 ounces light, "thinner than a magazine and lighter than a paperback," according to Bezos. It's biggest new improvement might be its 8-week battery life.