I bought a few of these solar chargers as Christmas gifts and never thought about using these as a PC. take a look at these: ThinkGeek :: Freeloader Pico Solar Charger
They are smaller than an iPhone and has a USB port. You can also charge this thing via USB since it has a battery inside. I was never really fond of these kind of chargers because I bought a few of them from ebay and they had crappy batteries in them. This one was the only one I found with good reviews and is reasonably priced. Of course I probably wouldn't use this regularly, but for those outdoor trips or even the last days of this world, these can come in handy. I'm thinking if I should keep one of these for myself.
Here's a review: YouTube - Earth Day Special: FreeLoader Pico Solar Charger Review
They are smaller than an iPhone and has a USB port. You can also charge this thing via USB since it has a battery inside. I was never really fond of these kind of chargers because I bought a few of them from ebay and they had crappy batteries in them. This one was the only one I found with good reviews and is reasonably priced. Of course I probably wouldn't use this regularly, but for those outdoor trips or even the last days of this world, these can come in handy. I'm thinking if I should keep one of these for myself.
Here's a review: YouTube - Earth Day Special: FreeLoader Pico Solar Charger Review