Portable Iphone Charger At Best Buy What Is The Best Portable Solar Charger?

What is the best portable solar charger? - portable iphone charger at best buy

I want a portable solar charger to recharge my iPhone and Sat Nav, while I was trekking in Canada. Can anyone suggest what the best way. So far I have found in the classical and the Solio Magnesium and the log power saw monkeys travelers. Does anyone have any suggestions or recommendations?