saw this on engadget today. could help brightness levels a lot.
http://www.engadget.com/2008/07/02/casio-t...or-outdoor-use/
http://techon.nikkeibp.co.jp/english/NEWS_...0080702/154195/
according to the link, it allows light to pass easily through the LCD so that it can reflect off of the reflective layers. not great resolution yet at 640x480, but maybe sometime soon