During recent years, stereoscopic 3D (S3D) mobile devices have entered the mass markets. Yet, mobile S3D user experience (UX) design has not been widely studied, and stereoscopy in today's products is used for purely visual design, whilst the potential for holistic UX has been neglected. In this work-in-progress paper we introduce the design, implementation and preliminary evaluation of a mobile S3D phonebook application, where stereoscopy was used to augment the 2D user interface (UI) design to provide information related to the time when the last call with each phonebook contact was made.

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In this paper, we describe our demonstration utilizing an urban landmark, a monument in a city center, for interaction. The City Mouse is an interactive media installation, where the participants rotate a 3D model of the Earth presented on a screen by rolling a large stone ball resting on a water fountain in a stone slab. During a public trial, approximately a hundred people interacted with the system. We demonstrate how an existing landmark in urban spaces can be used in an interactive experience, and report the experiences with the installation. We present how the communal ownership, associations and existing practices were connected to the successful design of the media installation.

Mobile stereoscopic 3D (S3D) user experience (UX) design has not yet been widely studied. Stereoscopy in today's products is used for visual design purposes, whilst the potential for holistic interaction design and utilitarian aspects have been neglected. In this paper we introduce the design, implementation and evaluation of a mobile S3D phonebook application. In the application stereoscopy was used to augment the 2D user interface (UI) design to provide information related to the time when the last call with each phonebook contact was made. We describe the results of the pilot study charting the design directions, laboratory study of first impressions, and results of a field trial, where 21 participants used the application for a few days. The S3D UI design provoked first impressions related to entertainment and 2D UI to practical qualities, whereas the field study showed that our S3D phonebook design successfully demonstrated that utilitarian value can be incorporated to the design.

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