Human Computer Interaction with Immersive Labs
Immersive Labs creates "Human Computer Interaction", which aims to make computers more usable by improving the design and interactivity. Jason Sosa is the founder of Immersive Labs and he is currently "building the next generation of interactive advertisements" from their lab in Boulder, Colorado. In this clip Jason demonstrates their interactive billboard. This is another Robert Scoble / Building 43 video recorded during Scoble's recent visit to Boulder..
Here is another video showing off multi-touch capabilities:

