Surefire has introduced a flashlight that accepts AA batteries. The E2L AA Outdoorsman runs on 2 AA batteries and boasts 2 output levels: 80 lumens for 9 hours and 3 lumens for 60 hours. That kind of runtime, output, and well known Surefire quality makes light perfect for outdoor pursuits.
I know a lot of people have been waiting for a light like this from Surefire.
I like it, as I have enough Surefire G2s laying around for the last few years.
Might make a good kubaton too.