If this ever makes it to the commercial market, just imagine how you could wow the most jaded meeting attendees:
Virtual butterflies that flutter about in space and react to the presence of visitors—if you touch them or try to catch them, they fly away; but if you hold your hand steady, they return and, with a little luck, alight on your outstretched hand. The “Moony” project is meant to make such a scenario possible. Its aim is to develop an intuitive interface that can be used in conjunction with smoke or steam, projections and sensors. A forerunner project has already been carried out. Water vapor serves as the projection surface for the visualizations.