I had the weird idea of "I Spy meets Minority Report", does anyone remember those old object-finding books? Well I wanted to see if we could pull this into the 21st century. So I knocked up this little proof-of-concept in Unity, the necessary files (to my knowledge) are available on GitHub.
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The aim is to find the lone sphere among the cubes and tap it (turning it red).
By translating one open hand above the Leap controller in x-axis/y-axis space you can rotate left/right and up/down and by rotating one open hand about the z-axis your view will rotate around the z-axis too.
By holding two open hands above the Leap controller (spread a little far apart), the camera will fly forward. You can see a video of it in action.
It's nothing special, just my first "completed" project. I wanted to make the necessary files available for anyone in case other people want to take the concept further (which I may/may not do if the interest holds up).