You are going to to like this one.
Large multi-touch displays enable two or more fingers to tap and trace on a surface. When combined with software, these screens could allow large-scale collaboration among many people.
Credit: Jefferson Y. Han
Also, the DimondTouch table developed by MERL has just as much potential once the technology becomes wide spread. I would have liked to see the typing capabilities in this video, but I assume typing will not be a problem.