Foreword -- Preface -- 1. Mobile phone and visual tags : linking the physical world to the digital domain / Marco Avvenuti, Alessio Vecchio -- 2. Context-aware mobile learning on the semantic Web / Rachid Benlamri, Jawad Berri, Yacine Atif -- 3. Model-driven development for pervasive information systems / José Eduardo Fernandes, Ricardo J Machado, João Álvaro Carvalho -- 4. Device localization in ubiquitous computing environments / Rui Huang, Gergely V. Záruba, Sajal Das -- 5. Enabling programmable ubiquitous computing environments : a middleware perspective / Christine Julien, Sanem Kabadayi -- 6. Determinants of user acceptance for RFID ticketing systems / Dimitrios C. Karaiskos, Panayiotis E. Kourouthanassis -- 7. Designing for tasks in ubiquitous computing : challenges and considerations / Stephen Kimani, Silvia Gabrielli, Tiziana Catarci, Alan Dix -- 8. Kinetic user interfaces : physical embodied interaction with mobile ubiquitous computing systems / Vincenzo Pallotta, Pascal Bruegger, Béat Hirsbrunner -- 9. M-traffic : mobile traffic information and monitoring system / Teresa Romão, Luís Rato, Antão Almada, A. Eduardo Dias -- 10. Towards ambient business : enabling open innovation in a world of ubiquitous computing / Christian Schmitt, Detlef Schoder, Kai Fischbach, Steffen Muhle -- 11. Activity-oriented computing / João Pedro Sousa, Bradley Schmerl, Peter Steenkiste, David Garlan -- 12. Privacy threats in emerging ubicomp applications : analysis and safeguarding / Elena Vildjiounaite, Tapani Rantakokko, Petteri Alahuhta, Pasi Ahonen, David Wright, Michael Friedewald.