PowerFilm inc. has a booth this year in the Central hall of the Las Vegas Convention Center. One of the products on display is a flexible solar charger. Wear it on your backpack while hiking and it charges 2 AA batteries in 4 hours.
The TrickleStar PC TrickleSaver connects to your computer devices and links them to your computer so when you turn your computer on, the other devices turn on and conversely when you turn it off. It helps to reduce the stand-by power that is wasted when other devices are not in use.
Roughing it takes on a new meaning with this handy device. The LED Dynamo from Green Goods Technology is a hand crank lamp that not only produces enough power to light your way, but also to charge your mobile devices.