Presented by a group of researchers from Japan and Finland, ARGO uses a projector to show game situations, concepts and problems on top of a regular Go board.
As shown in these modes, the advantage of our approach is to allow players to get information through the original interaction offered by the Go board and the stones. By superimposing information onto the board, players can concentrate on the match at hand or self-training without fragmenting their attention towards an instructional book and etc. This is important to make it possible for the players to allocate enough cognitive resources for recognizing the situations in the game. Using original game items as the basis preserves Ma and traditional look-and-feel, such as distance between players, touch of a wooden board and sound of stones.
I really like how they used the stones to control the menus. Nice touch, and a cool project as a whole.
More information here.