More advancements out of the yea-for-sun! department. What follows is a line from the description of the  the Snippy e-paper reader as put out at the Greener Gadgets Design Competition 2008:

“Snippy is an ultraportable handheld electronic viewer for textual and graphic information which harvests operating energy from the sun and transparently links to other Snippys in the area to share content.”

via: GreenStumbler.com and Teleread.org