Pranav Mistry's SixthSense Technology
At TEDIndia, Pranav demonstrated several tools that help the physical world interact with the world of data -- including a deep look at his SixthSense device and a new, paradigm-shifting paper "laptop".
Here is his video where he talks about his work, ideas and promises to offer open source software for all of his work:
I can see how his work will promise a much simpler world a few years down the line. Great job Pranav ... Really impressive.