All Unity 3D. Thanks for the feedback that you want more detail. We're posting some app video and a developer section soon.
We make the real world (surfaces/objects/hands) appear as 3D objects inside Unity. We do the heavy lifting with computer vision and math so you can code the game as you would any other--the cool bit is the 3D objects correspond to stuff in the real world. Our number one goal is to be the easiest environment to dev on.