The team showed off a prototype at a recent Leap AXLR8R event; the demo rig is a little rough around the edges, but it clearly works. The arm follows Leap-detected movement with a slight, but acceptable amount of lag, and picking up and moving objects is fairly intuitive. The demo arm was also equipped with a camera, giving users a first-person view of the action, overlaid on a nearby laptop with a virtual hand. It's an easy to use and natural control method. Best of all, it's plug and play: Alessi says the the system was built to existing standards, and should be compatible any existing military arm and anything built in the near future.