For many people mobile phones have become a central device for communication and access to information. When designing the user interface on mobile devices and in particular phones developers often face the trade-off between creating a comfortable and efficient to use device and making the device very small and light. Over recent years the research community in mobile user interfaces has developed many different user interfaces, including systems for text input, navigation, and visualization. Similarly researchers investigated different modalities for output (e.g. visual, sound, haptics & touch) and new sensors (e.g. vision, location, orientation, proximity) for input to address these issues. In many applications in the pervasive computing domain the mobile device will also interact with the environment and the user interface is potentially distributed which adds additional complexity. The tutorial will give an overview of user interface concepts, technologies and methods for the development of mobile devices.

The issue of privacy quickly rears its ugly head once we start devising smart items and environments that continuously and often intimately monitor their users. Interestingly enough, the public at large seems strangely ambivalent about such trends: While novel ubicomp technology developments such as RFID or wearable computing are often accompanied by highly critical press coverage, consumers seem equally eager to disclose ever more parts of their lives in exchange for lower prices, better service, and more security. What are we, the researchers and system designers of such smart artifacts, to do? In this tutorial, I want to briefly explain not only the most common technical approaches and challenges to privacy protection in ubicomp, but also offer a view of the larger picture of privacy: the social values behind it, the public policy strategies surrounding it, and the legal realities governing our privacy today.

Location based services are becoming ever more accessible as mobile devices and technology continue to evolve. In addition to GPS, various wireless networking technologies, such as sensors and RFIDs, are being used to implement services not only in city wide environments but in shopping malls, train stations, and other indoor facilities. Location based services are essential to empowering the user to cut through the information overload of today and receive concise and usable information. We have already rolled out PlaceEngine, locationware that is especially effective indoors that estimates users' locations via wireless LAN signals. Using this framework, we have been able to devise unique location based services for dense urban environments such as Tokyo. This tutorial will present an overview of actual location based services available in Japan today, describing the technologies they integrate, the benefits they have to offer to users, and our experience with building such services.