The CareNet Display: Lessons Learned from an In Home Evaluation of an Ambient Display.- Personalized Peripheral Information Awareness Through Information Art.- Reminding About Tagged Objects Using Passive RFIDs.- Evaluating the Effects of Displaying Uncertainty in Context-Aware Applications.- The Error of Our Ways: The Experience of Self-Reported Position in a Location-Based Game.- Particle Filters for Location Estimation in Ubiquitous Computing: A Case Study.- Some Assembly Required: Supporting End-User Sensor Installation in Domestic Ubiquitous Computing Environments.- Rapid Authoring of Mediascapes.- CAMP: A Magnetic Poetry Interface for End-User Programming of Capture Applications for the Home.- Designing Capture Applications to Support the Education of Children with Autism.- 'This All Together, Hon?' Ubicomp in Non-office Work Environments.- Security and Trust in Mobile Interactions: A Study of Users' Perceptions and Reasoning.- WatchMe: Communication and Awareness Between Members of a Closely-Knit Group.- Everyday Encounters with Context-Aware Computing in a Campus Environment.- Cooperative Artefacts: Assessing Real World Situations with Embedded Technology.- I Sense a Disturbance in the Force: Unobtrusive Detection of Interactions with RFID-tagged Objects.- The NearMe Wireless Proximity Server.- The ContextCam: Automated Point of Capture Video Annotation.- MouseField: A Simple and Versatile Input Device for Ubiquitous Computing.- The Iterative Design Process of a Location-Aware Device for Group Use.- DOLPHIN: A Practical Approach for Implementing a Fully Distributed Indoor Ultrasonic Positioning System.- The Carrot Approach: Encouraging Use of Location Systems.- ActiveBelt: Belt-Type Wearable Tactile Display for Directional Navigation.- An Audio-BasedPersonal Memory Aid.- Infrastructures and Their Discontents: Implications for Ubicomp.- Opportunity Knocks: A System to Provide Cognitive Assistance with Transportation Services.