The Immersive Cocoon is a future concept study by Tino Schaedler with design collective NAU; an idea to push the envelope and provoke a new conception and evolution of computer interaction. More at i-cocoon.com.

(Source: notcot.org)

Tone Matrix by Andre Michelle is a simple step sequencer triggering sine waves to create audio patterns. Very cool.

Momentfactory has designed this interactive digital installation in Montreal/Canada. If you want to see similar things done digitally, head over to the V&A and visit the current DECODE exhibition - very cool.