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We are exploring the design space of wearable computers by designing "public" wearable computer displays. This paper describes our first prototype, the BubbleBadge. By effectively turning the wearer's private display "inside out", the BubbleBadge transforms the wearable computing concept by making digital information public rather than private. User tests showed that the device introduces a new way to interact with information-providing devices, suggesting that it would be valuable to explore the concept further. KeywordsWearable computers, interaction technology, public displays CHI 99 1 5-20 MAY 1 999 ACM ISBN: 1-58113-158-5 Student Posters

Live role-playing (LRP) games stand as powerful metaphorical models for the various digital and ubiquitous forms of entertainment that gather under the term pervasive games. Offering what can be regarded as the holy grail of interactive entertainment-the fully immersive experience-LRP games provide a tangible and distributed interface to a gaming activity that is emergent, improvised, collaboratively and socially created, and have the immediacy of personal experience. Supported by studies of LRP games, specifically aspects of costume, set design and props, we outline the interface culture specific to LRP and in which ways this culture may inform the design of pervasive games.

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