When mobile phones expand into handheld tabletops

Future mobile devices that feature a rollout display will be able to act as a relatively large interactive surface on-the-go. This will allow for novel collaborative usages in mobile settings. In this paper, we explore several dimensions of the design space of such "handheld tabletop" devices. We will illustrate our thoughts by means of a first prototype. Early evaluation results indicate that it effectively supports mobile social encounters.

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