Dr Anxo Roibas is Senior Lecturer at the University of Brighton, Visiting Lecturer at Westminster University, at the Politecnico di Milano and the National Institute of Design (India). He has been user experience Consultant for Vodafone and since 2000 he has been collaborating with the Nokia Research Center. He has coordinated ethnographic research in collaboration with the Vodafone Group Fondation and the British Royal Academic of Engineering exploring the use of mobile phones as multimedia interfaces. He has been British Fellow at the BT IT Mobility Research Center. Anxo is Executive Committee member of the British HCI Group. Aaron Marcus (BA, Princeton University, BFA, MFA, Yale University) is President of Aaron Mracus and Associates, Inc. a pioneering user-interface (UI) design firm. Mr Marcus is the world's first graphic designer to use computers. His firm has worked on mobile UI projects with Equilibrio, HP, Motorola, Nokia, Siemens, Samsung, Qwest, and Visa among others. He has written/co-written 4 books and more than 250 papers and lectures/tutors worldwide about mobile UI design. Riccardo Sala (BA and MSc Design Politecnico di Milano, MA Interactive Media Dublin Institute of Technology) is Information Architect at Dare Digital. He has been interaction designer at the Times Online. He has also worked as consultant HCI designer specialized in new media and the assessment of the user experience with applications and services for mobile phones.