Logitech has added another keyboard to their line up with the launch of the Logitech Wireless Solar Keyboard K750. The Logitech K750 measures just 0.33 inches thick, and it is designed to re-charge when it is exposed to sun light.
Once the keyboard is charged, it can operate for up to three months in total darkness, and it is designed to charge even in areas where there is little light, like the Arctic Circle.
It certainly sounds like a great idea, and should save you a few dollars on batteries. The Logitech Wireless Solar Keyboard K750 is available for $80 from Logitech.