YesYesNo's Sweet Night Lights
The recent projected light show called 'Night Lights' in Auckland let users participate in various modes of interaction. The result is a pretty cool and totally interactive light party. Take a peak at the video to see for yourself.
Implications - My favorite lighting effect is by far the silhouettes of people dancing, which actually project the movements of live people from a white screen onto the side of the building. It almost looks like an Apple iPod commercial.