The Leap Motion is a very cool piece of technology. It’s a small $80 box that you can put on your desk to control an ordinary computer using hand motions. It’s extremely accurate, allowing for very fine motor control using all of your fingers. If you haven’t seen it, be sure to check it out. I’m definitely getting in line for one to play with myself.

Robbie Tilton has put together an amazing video demo showing a Leap Motion controlling a Three.js rendered 3d hologram of the earth. It is projected on a 4-sided prism, and while it’s not quite as good as what Tony Stark has in Iron Man, it’s still pretty darn cool. And it’s controlled by JavaScript! Check out the video, embedded below.

As you can see, the four sides of the earth image are projected onto a table and then onto the four sided prism, giving the hologram-like effect. Thanks to tools like Three.js and WebGL, this can all be done quite simply using JavaScript. Now imagine your web apps projected onto a hologram and controlled using Leap Motion. Will you build the next JARVIS? 😃

I have no doubt that there will be many more amazing demos like this as developers get their hands on the Leap Motion, which is slated to ship in May of this year for $80. If you have a great idea, you may even be able to get early developer access by signing up on their site.