Abstract
This paper introduces Behand. Behand is a new way of interaction that allows a mobile phone user to manipulate virtual three-dimensional objects inside the phone by gesturing with his hand. Behand provides a straightforward 3D interface, something current mobile phones do not offer, and extends the phone's input and display space. The 3D direct manipulation paradigm makes it intuitive for people of all cultural backgrounds. It is ergonomically appropriate and technically feasible. A user evaluation of the concept was carried out, showing that users find the concept "useful", "innovative" and "fun" and there are no acceptability issues. Please refer to the video accompanying this paper for a video prototype of Behand.