The transBOARD is a Tangible Bits platform which explores the use of a digitally-enhanced whiteboard as a model of a wall in the future. The transBOARD supports distributed access to physical whiteboard activity. Distributed users can monitor realtime drawing processes over the internet or can be aware of drawing activity through ambient displays in the ambientROOM. The transBOARD also supports the use of physical icons (phicons) as containers of digital strokes. In contrast to the metaDESK, the transBOARD provides an interesting platform for considering tangible interfaces with rich input but limited output modalities.
(Source: http://tangible.media.mit.edu/projects/transboard/)