Pranav Mistry: The thrilling potential of 'SixthSense' technology

Hi guys,
        I received a mail from friend with this caption, I was wondering what this is all about? this video is amazing. You can find the video from the link given below:
http://economictimes.indiatimes.com/tv/TED-India-Pranav-Mistry/videoshow_ted/5231080.cms

GaneshKB