Can you DIGG it?

on DIGG there seems to have been much interest in a DIY flashlight article.

http://www.diylive.net/index.php/2006/01/27/diy-led-flashlight/

some people seem to find it ridiculous, turning a flashlight into a,
well, a flashlight.

in an emergency LEDs win out over incandescents, lasting longer and more robust.
how many times have you dropped a torch
and the bulb conks out, just when you need it most.

this usually happens in movies just before the aliens start to swarm.
you're unlikely to ever be in the same situation a la pitchblack,
but its handy to have an LED
flashlight that you know will work when you switch it on
without worrying about bulb life.