It provides virtual shared drawers that connect family members who are located at a distance. When a user puts something in the upper drawer and closes it, a photograph is taken automatically and the image appears in the lower drawer at a distant place.
Source: Siio, I., Rowan, J., Mima, N., and Mynatt, E. 2003. Digital decor: Augmented everyday things. In Proceedings of Graphics Interface 2003. 159–166.
http://siio.jp/projects/decor/indexj.html