One thing I don't get is how the light is used.
I'm assuming (and please correct me if I'm wrong) that the light attaches to your wrist, so as you point a weapon at a person, the light illuminates the target so you can ID the threat and then fire/not-fire.
Problem is, from all I have read: When confronted by someone with a light, most people instinctively aim for, and shoot at the light. This is why police are trained to hold their light off center from their bodies. Regardless of which wrist you wear this on, it seems like any use will line up the light with your body, which seems to be a bad thing. Using a regular flashlight, a LEO could hold the light at arms length from his body, and by holding the light around the barrel, still illuminate the threat. Not so easy to do that when the light's head is oriented parallel to your arm and fixed in that orientation.
Anyway, it will be interesting to read some actual feedback from people who use them in a LE or MIL environment.