This volume presents the cutting-edge research from the 7th International Conference on Ubiquitous Computing. The 22 carefully selected papers explore the multifaceted landscape of ubiquitous computing, addressing challenges and innovations in human-computer interaction, system design, context recognition, communication, and the societal impact of pervasive computing technologies. The research spans a range of methodologies, from practical field deployments and laboratory experiments to in-depth ethnographic studies and theoretical frameworks, offering a comprehensive view of the field's advancements.

The proceedings of UbiComp 2005 offer a snapshot of the state of the art in ubiquitous computing as of September 2005, reflecting the diverse research interests and methodologies prevalent in the field at that time. The selection of papers highlights key areas of focus, including location-aware systems, user interface design, and context-aware computing, indicating the practical and theoretical directions researchers were pursuing. The inclusion of varied methodologies suggests a field that values both empirical validation and conceptual exploration. This collection serves as a valuable historical document for understanding the evolution of ubiquitous computing research.