Since we're on the topic of solar power, let us take a look at the solar powered Nintendo DS Lite. While the built-in li-ion battery of Nintendo's latest handheld already features a pretty impressive battery life, you still can't get your gaming fix whenever you're stuck in the great outdoors with nary a power outlet in sight. Why not harness the natural power of sunlight and use it to give you virtually unlimited gaming time while everyone else is ...