Last month Aliresa Sahami finished his master thesis on multi-tactile interaction at BIT Bonn and joined our group in Essen. Ali worked for me a student resesearch assistant at Fraunhofer IAIS. During his studies in Bonn we published an interesting workshop paper on mobile health  and gave a related demo at Ubicomp .
 Alt, F., Sahami Shirazi, A., Schmidt, A. Monitoring Heartbeat per Day to Motivate Increasing Physical Activity. Ubiwell workshop at Ubicomp 2007.
 Sahami Shirazi, A.; Cheng, D.; Kroell, O.; Kern, D.; Schmidt, A.: CardioViz: Contextual Capture and Visualization for Long-term ECG Data. In: Adjunct Proceedings of Ubicomp 2007.