USB Flashlight

Another project that ought to be pretty easy. I'd like a USB flashlight that I can use with my battery pack.

For the circuitry, use an lm317 as a current regulator, hook it up to a pot to make it adjustable. Look at simple transistor circuits, maybe look at using a 555 as a switching circuit or a full switching regulator

Use a 1 watt LED. I'm also thinking of using two strips of the thicker copper wire to make a flexible neck.