Awesome Power Bag is Awesome!
At CES this year I got to check out lots of stuff, but the one thing that kept me sane the whole time was the fact that I knew all my gadgets, iPad, iPhone, etc. would always be charged no matter where I was on the show floor.
This Ful Powerbag is awesome. Not only is it a sling style backpack that makes you look cool, it also has a complete charging system built in. You charge up the bags battery before you leave the house, and with the built in Apple connector, Micro- and Mini-USB connectors, etc. you can charge up to 4 devices fully all day long!
I was worried initially about how heavy it would be if I wanted to just carry it around without needing to charge stuff, but the battery is removable so you can reduce the weight if you want to go off the grid.