The iPad has tons of keyboard case solutions, but this is probably the first solar-powered one on the market: the LOGITECH SOLAR KEYBOARD FOLIO ! This is a new keyboard case, designed to fit around an iPad 2 or a third-generation iPad, and that looks like a book cover. It is proposed in different colors.
The keyboard has no AC charger, and no hole for an adapter. It uses the power of the sun to charge. It features two Dye-sensitized solar cells, that provide two years of useability, based on an average of two hours per day, with a full charge battery. No need to plug the keyboard into a charger, just remember to set the closed folio down with the solar panels exposed! The panels are face down when the keyboard is in use so no charging can happen.
This keyboard doesn’t include a trackpad, or a numeric pad, but proposes some multimedia functions keys to control videos and sounds.http://images.amazon.com/images/G/01/electronics/detail-page/B007RNCLBY_logitech-solar-keyboard-folio-row-1_lg.jpg http://cdn.trendhunterstatic.com/thumbs/logitech-solar-keyboard-folio.jpeg http://www.logitech.com/assets/43164/logitech-solar-keyboard-folio-row-3.png http://images.amazon.com/images/G/01/electronics/detail-page/B007RNCLBY_logitech-solar-keyboard-folio-row-4_lg.jpg