1 Introduction.- 1 Studying the Use of Mobile Technology.- 1.1 Introduction.- 1.2 Understanding the Technology.- 1.3 Tracing the Non-development of the Mobile Phone.

- 1.4 Understanding the Technology in Use.- 1.5 Overview of the Book.- Notes.- References.- 2 Locating Mobile Technology.- 2 The Mutable Mobile: Social Theory in the Wireless World.

- 2.1 Introduction.- 2.2 Transparency, Visibility, Audibility.- 2.3 Conjuctions of Remote and Co-present Interaction.- 2.4 Mobility and Location.

- 2.5 Being Available.- 2.6 Conclusion: Mobile Theory.- Notes.- References.- 3 Who''s Watching Whom? Monitoring and Accountability in Mobile Relations.- 3.

1 Introduction.- 3.2 Surveillance and Mobile Technologies.- 3.3 Who''s Watching Whom?.- 3.4 Surveillance and Accountability.- Notes.

- References.- 4 The Region as a Socio-Technical Accomplishment of Mobile Workers.- 4.1 Introduction.- 4.2 Pre-assembled Parts.- 4.3 Assembling a Mobile Office.

- 4.4 Boundary Work.- 4.5 Out of a Mobile Office.- 4.6 Broken Parts.- 4.7 Summing up a Region.

- Notes.- References.- 5 Mobile Communications in the Twenty-first Century City.- 5.1 Introduction: The Arrival of Mass Mobile Communications in the City.- 5.2 Object and Self--:Personal Relationships with Mobile Telephones.- 5.

3 City and System.- 5.4 Conclusions: Rethinking the City.- Notes.- References.- 3 From Ethnography to Use.- 6 Seeing the "Rules": Preliminary Observations of Action, Interaction and Mobile Phone Use.- 6.

1 Introduction.- 6.2 Analytical Background.- 6.3 Ethnomethodology, Technology and Situated Practice.- 6.4 Rules, Social Action and Technology Use: The Case of Air Traffic Control.- 6.

5 Displaying the ''Rules''.- 6.6 Non-vocal Responses.- 6.7 Body Movements.- 6.8 The Unanswered Phone.- 6.

9 Other Common Sense Considerations.- 6.10 Time.- 6.11 Conversational Topic.- 6.12 Future Research and Future Technology: The Issue of Design.- 6.

13 Conclusion.- Notes.- References.- 7 Local Use and Sharing of Mobile Phones.- 7.1 Introduction.- 7.2 Mobile Phone Research.

- 7.3 In the Field.- 7.4 Sharing of Mobile Phones.- 7.5 Discussion.- Notes.- References.

- 8 Running and Grimacing: The Struggle for Balance in Mobile Work.- 8.1 Introduction.- 8.2 Intel''s Architecture Labs and Mobile Technologies.- 8.3 The Technological Imperative: "Anytime, Anywhere Computing".- 8.

4 Access to Other People.- 8.5 Awareness and Coordination.- 8.6 Creating Information.- 8.7 Conclusion.- Notes.

- References.- 9 Blurring the Boundaries: Cell Phones, Mobility, and the Line between Work and Personal Life.- 9.1 Introduction.- 9.2 The Social Meaning and Influence of Settings.- 9.3 One-person, One-number: The Trial of a Personal Phone.

- 9.4 Results.- 9.5 Conclusions.- References.- 4 From Use to Design.- 10 Welcome to the Wireless World: Problems Using and Understanding Mobile Telephony.- 10.

1 Introduction.- 10.2 Related Work.- 10.3 Method of Study.- 10.4 Findings: Attributes of Wireless Telephony.- 10.

5 Conclusions.- References.- 11 Framing Mobile Collaborations and Mobile Technologies.- 11.1 Introduction.- 11.2 Creating the Consumption of Mobile Devices.- 11.

3 Understanding Representations of Mobile Workers.- 11.4 Understanding the Practice of Mobile Work.- 11.5 Broadening the Concept of Mobile Work: Reflections on Fieldwork.- 11.6 Putting it all Together: Design Frameworks for Collaboration on the Move.- 11.

7 Conclusions and Summary.- Notes.- References.- 12 Exploring the Relationship between Mobile Phone and Document Activity during Business Travel.- 12.1 Introduction.- 12.2 Our Approach.

- 12.3 Previous Research.- 12.4 The Study.- 12.5 Findings.- 12.6 Implications for Mobile Technologies.

- 12.7 Conclusion.- Notes.- References.- 13 Usability of Portable Devices: The Case of WAP.- 13.1 Introduction.- 13.

2 Usability.- 13.3 User Perceptions of a First Generation WAP Service.- 13.4 Results.- 13.5 The Right Approach to Portability.- 13.

6 Conclusion.- References.- 14 The Mobile Interface: Old Technologies and New Arguments.- 14.1 Introduction.- 14.2 Current Forms of the Interface.- 14.

3 Radical Form Factors.- 14.4 User Perceptions of the Mobile Interface.- 14.5 Interfaces to Social Process.- 14.6 Conclusions.- References.