Augmented Shadow, by Joon Moon, 2010. used openframeworks. It’s a tabletop interface on where artificial shadows of tangible objects displayed. You can play with the shadows lying on the boundary between the real, virtual, and fantasy.
The 76 Synthesizer has a wonderful iPad App Interaction Design by Jonas Eriksson, a Designer from Sweden.
Kinect Tracer by Eric Brockmeyer and Jordan Parsons is a path mapping system which projects a graphic visualization of a user’s path on the ground behind and on top of them. The setup included a ceiling mounted projector, a 45 degree hanging mirror, two computers (Mac OS and Windows 7), and a Microsoft Kinect Sensor.
The Solaris Sun Shading System is brilliant idea that should already be in use. Designed by José Vicente, the sun shading system is equipped with photovoltaic panels which allows users to charge their electronics with eco-friendly, renewable solar power from the sun.