The technology we're using is taken from remote presence machines used for things like remote surgeries. The machines are really just tracking a point in 3d space on both sides and matching it. For medical use, you can imagine the robot arm tracking the edge of a doctors scapel to the micron accuracy -- what we have here is a consumer grade robot for <200$ that tracks to milimeters.
It's a 3D force feedback mouse essentially, you can use it for manipulating and creating 3D models and feel their texture, edges, material, weight, etc.
