SorobanGeeks has a picture of a new prototype electronic paper from Hitachi, which according to a story on the subscription-required Nikkei Net, is just 3 millimeters thick. It also appears to be in color, presuming that this picture is an actual device and not just a mockup. Hitachi plans to release a product using the ePaper in 2006—I can't wait.
Le Papier Electronique pour 2006 ? [SorobanGeeks]