(paper prototype)
The Picture Frame is a networked digital touch screen with the appearance of a picture frame. The frame contains an image of the user’s partner. The user can send singular graphical symbols to his or her partner’s frame where they appear in a thought bubble beside the image of the user’s head.
Source: Garnæs, K., Grünberger, O., Kjeldskov, J., and Skov, M. B. 2007. Designing technologies for presence-inabsence: Illustrating the cube and the picture frame. Pers. Ubiquitous Comput. 11, 5, 403–408.