Pictionaire is a collaboration between Andy Wilson and others at Microsoft Research with Björn Hartmann at the University of California, Berkeley. It’s a touchscreen table (4ft x 6ft) which is positioned beneath a ceiling-mounted camera and projector which can “see” and respond to objects placed on the table.
In the example above you can see a user with a sketchpad who can transfer information off the paper on to the table as a digital object. You can also do the opposite to allow “tracing” of content from the digital space to the analog space. It also supports wireless keyboard.
As with lots of these things, the video is way better than my explanation so click play. I think you may like it.
[update] I just showed this to an architect I know and they were blown away saying that could revolutionise their industry. They then asked me “who makes it”. When I said “Microsoft” I got a pleasantly surprised look. “nice” was the answer 🙂