Here's tool for soldiers that's just too cool. <A HREF="http://www.engadget.com/entry/1234000793052925/">The Firefly</A> deploys a disposable ballistic camera from a standard-issue, rifled-mounted grenade launcher. There's no special training required; soldiers just fire off the grenade-sized reconnaissance device and wait about 8 seconds for the photos to come back to a carried pocket computer.