From TED:
.At TEDIndia, Pranav Mistry demos 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.” In an onstage Q&A, Mistry says he’ll open-source the software behind SixthSense, to open its possibilities to all.
I can’t say that I understand this but it’s very impressive.
It’s actually quite amazing. To get to the gist of it, watch at least 5-6 minutes starting at 5:20.