http://forums.macrumors.com/showthread.php?t=1701127

FutureTechHope: This is a step in the right direction. Remember when some people thought solar powered calculators would be impossible? Right now this would probably be used to minimally recharge the battery, but one day solar power will be able to fully power tablets, laptops and cell phones.

Logitech should be proud of themselves for introducing the wireless solar keyboard.
http://www.logitech.com/en-roeu/prod...edirect_112010