This is a really interesting interface that truly hides behind the objects in your environment. This could solve the problem of losing the remote control forever!

Now I’m thinking about embedding a bluetooth headset with a solar panel into a tree. You could control outdoor lighting by tapping and rubbing the tree. Or a coffee table that controls the stereo.

With three microphones, you could probably detect direction, too, which means that you could make more complex gestures (dim the lights by stroking down the wall or bring them back up by stroking up.)