Voltaic Backpack, Solar Backpack, Solar Bag
Now when you are out on the street and your laptop (I haven’t verified that this will power a laptop) is running out of juice, you can plug it into your back and keep on going. Looks heavy but I guess we are stuck with this type of thing until some miraculous battery technology breakthrough comes.
From the site:
The Voltaic backpack is a mobile power source, designed to charge your gadgets without tying you to a power outlet.
Thanks to Betsy for the link.