On his way from Eindhoven to Zurich Morten Fjeld was visiting our group. It was great to catch up and talk about a number of exciting research projects and ideas. Some years ago one of my students from Munich did his final project with Morten working on haptic communication ideas, see . Last year at TEI Morten had a paper on a related project - also using actuated sliders, see .
In his presentation Morten gave an overview of the research he does and we found a joint interest in capacitive sensing. Raphael Wimmer did his final project in Munich on capacitive sensing for embedded interaction which was published in Percom 2007, see . Raphael has continued the work for more details and the open source hardware and software see http://capsense.org. Morten has a cool paper (combing a keyboard and capacitive sensing) at Interact 2009 - so check the program when it is out.
We talked about interaction and optical tracking and that reminded me that we wanted to see how useful the touchless SDK (http://www.codeplex.com/touchless) could be for final projects and exercise. Matthias Kranz had used it successfully with students in Linz in the unconventional user interfaces class.
 Jenaro, J., Shahrokni, A., Schrittenloher, and M., Fjeld, M. 2007. One-Dimensional Force Feedback Slider: Digital platform. In Proc. Workshop at the IEEE Virtual Reality 2007 Conference: Mixed Reality User Interfaces: Specification, Authoring, Adaptation (MRUI07), 47-51
 Gabriel, R., Sandsjö, J., Shahrokni, A., and Fjeld, M. 2008. BounceSlider: actuated sliders for music performance and composition. In Proceedings of the 2nd international Conference on Tangible and Embedded interaction (Bonn, Germany, February 18 - 20, 2008). TEI '08. ACM, New York, NY, 127-130. DOI= http://doi.acm.org/10.1145/1347390.1347418
 Wimmer, R., Kranz, M., Boring, S., and Schmidt, A. 2007. A Capacitive Sensing Toolkit for Pervasive Activity Detection and Recognition. In Proceedings of the Fifth IEEE international Conference on Pervasive Computing and Communications (March 19 - 23, 2007). PERCOM. IEEE Computer Society, Washington, DC, 171-180. DOI= http://dx.doi.org/10.1109/PERCOM.2007.1