On December 15, 2011, Professor Heath delivered a Plenary talk at the Fourth International Workshop on Computational Advances in Multi-Sensor Adaptive Processing. The CAMSAP workshop is dedicated to theoretical topics such as convex optimization and relaxation, computational linear algebra, distributed algorithms, and sparse signal processing as well as their applications to array processing, communication systems, sensor networks, biomedicine, computational imaging, and emerging topics. Prof. Heath's talk was entitled The Limited Feedback Revolution in Wireless Communication.