With its full head and motion tracking support, the technology is a milestone for real-time gaze interaction with virtual avatars or 3D gaming applications.

ENGADGET: SMI Eye-Tracking 3D Glasses use rim-based cameras to adjust perspective

Compare the 2D demo above to the 3D demo (below) to see how much real-time interaction data a Famo.us app can handle.

FORBES: Famo.us Cracks The Secret Of High-Performance Apps By Tapping Another Dimension