Michael Haller is a full professor at the Free University of Bozen-Bolzano, Italy, founder and director of the Media Interaction Lab, responsible for computer graphics & human-computer interaction. He received Dipl.-Ing. (1997), Dr. techn. (2001), and Habilitation (2007) degrees from Johannes Kepler University of Linz, Austria. His current focus is on innovative interaction techniques and…