This past May, Bookeen announced the Cybook Opus. This product was intended to challenge the Amazon.com Kindle. The Cybook Opus e-reader weighs 5.3 oz. The Cybook Opus e-reader also has 1GB of storage, 200 DPI resolution, and 12 font sizes. The device can even fit in your pocket. Now the details are available about the device. The device costs $250. The Cybook Opus has access to about 200,000 digital books. The books are available in PDF and EPUB format.