Jim Hahn, Librarian at the University of Illinois Urbana-Champaign, is an award winning author of articles on mobile computing, has convened national discussion forums for libraria...view moreJim Hahn, Librarian at the University of Illinois Urbana-Champaign, is an award winning author of articles on mobile computing, has convened national discussion forums for librarians interested in mobile learning and has presented on mobile computing research at international conferences.view less