Sling it around your neck and switch it on. The Revue will then use a variety of sensors to trigger the shutter, snapping a picture through a fisheye lens. The camera can detect temperature, infra-red motion, light color and brightness, and inside there is also an accelerometer and a compass.
The Vico Revue will take a few photos per minute for at least 12 hours. The photos can be stitched together into a movie, which I think would be really cool. Unfortunately the Revue is priced too high: US$500.