One of the more bogus things that can happen when you're out of the house is your phone dies -- more so if it's a smartphone. Not only do you no longer have a phone line at your disposal, you don't have email, text messages, maps, the web! Totally uncalled for.
Novathink just announced its iPhone and iPod Touch case that has a solar panel on the backside to capture and collect solar power that then goes to power your mobile. If your phone is already charged, the Surge case will store the harvested energy within an internal battery.
The more helpful feature is there's no longer guesswork whether or not you have enough sunlight to collect a charge. Built-in LEDs light up depending on how sufficient your light source is, along with how much its battery has been charged. A solar planner helps you figure out how long you need to sit your case in the sun to charge up your mobile. We would be careful about setting your phone, along with the case, out in full sun as heating it up may not be a good thing.
Would you use one of these to charge up your cell?