About the Author: Robert Ruemmler currently works for Accenture AG, Switzerland as a consultant for leading Swiss banks. Robert holds a PhD from King's College London, United Kingdom (2005, Thesis: On the Distribution of Software to End-User Terminals in Third-Generation Mobile Networks). His research interests include Multicast in third-generation networks, IP multicast, software download to the mobile terminals, and software-defined radio. He has been actively collaborating with leading companies in mobile communications industry as part of European Commission-sponsored research projects.