The trail purists will hate this, but I say “hike your own hike” so:
Currently planing on bringing gadgets and a lightweight solar charger;
Solio:
http://www.rei.com/online/store/ProductDisplay?storeId=8000&catalogId=40000008000&productId=48139205&parent_category_rn=40004198&vcat=REI_SEARCH
or Brunton foldable
http://www.rei.com/online/store/ProductDisplay?storeId=8000&catalogId=40000008000&productId=48072264&parent_category_rn=40004198&vcat=REI_SEARCH
Pluses & minuses to both. Both under 200g, but more with cords etc. Depending upon final pack weight which I want to be under 20 pounds base, also planing on bringing a 57g ipod, and 145g blackberry. Gadgets, chargers and non standard batteries are a serious pain, but for a number of reasons I am going to experiment a bit and try to make it work.
However if your only gadget is a camera, I have found the new camera batteries last much longer than they used to, and would only bring the 65g wall charger (canon sd800), and 1 or even 2 spare 15g batteries. This set up would last for weeks or more, and you could easily find power at post stops, restaurants, etc.
Good luck & hopefully see you out there this summer, Inertia
Inertia