George is Associate Professor of eBusiness at the Athens University of Economics and Business. His main research interests lie in the areas of mobile and wireless applications and services; ubiquitous and pervasive information systems; business process modelling and simulation; and information systems evaluation. He has published more than 100 articles in leading journals and international conferences, including the Information Systems Journal, the International Journal of Electronic Commerce, and the International Journal of Information Management. He is a member of the editorial board of seven journals, including the International Journal of Mobile Communications and the Business Process Management Journal. Since 2001, he is the Director of the ISTLab Wireless Research Center, a group pursuing research on mobile business and ubiquitous commerce (http://istlab.dmst.aueb.gr/wrc/, http://www.wirelessresearch.eu/)