Check out this very cool interactive projection install from Nota Bene Visual: Streaming text was projected on the floor, and as a visitor walked across it, an image of their moving silhouette was projected against an adjacent wall using the same text graphics. This unexpected effect is a major eye-catcher and looks like it had attendees at the Freemote 11/Fiber Festival in the Netherlands engaged, big-time.
(Thanks to Iris Worldwide global creative director Sean Reynolds for the heads-up!)