I don't have an answer, but I gotta believe that a large tablet device similar to the e-ink technology that's used in the Kindle e-reader would work out well. Since it doesn't use backlighting it could even be used outdoors. The technology is there, it's probably not profitable enough for a company to undertake. On the other hand the hardware has been developed it mostly like would just require the software to run it.



[This message has been edited by Stephenm52 (edited 01-21-2010).]