LED flashlights have been out a while now, but I have not had a chance until now to play with one....at the Discovery store. To get it online...go to the folks at ThinkGeek.com or Discover.com.
The unit is very well engineered (100,000 bulb life, 120' range, waterproof to 120 ft, 2000 lb crush resistance)... but what I really like is the battery saving feature of the LEDs (20+ hrs continous use). It will replace my small Maglite. Now if the Inova folks made a large one, I would probably replace my large 4D cell Maglite as well!