Ken Hinckley

Marquardt, N., Ballendat, T., Boring, S., Greenberg, S. and Hinckley, K. (2012)
Gradual Engagement between Digital Devices as a Function of Proximity: From Awareness to Progressive Reveal to Information Transfer. In Proceedings of Interactive Tabletops a& Surfaces - ACM ITS. (Boston, USA), ACM Press, 10 pages, November 11-14. Earlier version as Report 2012-1025-08, Apr. 2012 (pdf) and (video).
PDF Paper Video File
Marquardt, N., Hinckley, K. and Greenberg, S. (2012)
Cross-Device Interaction via Micro-mobility and F-formations.. In ACM Symposium on User Interface Software and Technology - UIST'2012. (Cambridge, MA, USA), ACM Press, pages 13-22, October 7-10. Include video figure, duration 3:23. See also Ken Hinckley's Blog entry.
Hyperlink PDF Paper Video File
Greenberg, S., Hudson, S., Hinckley, K., Ringel Morris, M. and Olson, D. (2009)
Proceedings of the 27th International Conference on Human Factors in Computing Systems (ACM CHI 2009). Papers and Notes, 2390 pages ACM Press, New York, NY, April 4-9. PDF is to front / back matter.
PDF Paper