The movie Minority Report (starring Tom Cruise) presented new methods of interactions with information. Looked very sci-fi back then, but not any more. Oblong Industries is working towards making the concept a reality.
John Underkoffler (co-founder of the company and lead of the team that created the Minority Report interfaces) recently demonstrated the interface at a TED conference.
The product is called the g-speak spatial operating environment.
As the name suggest its an Operating System that handles interactions in space. It is a combination of gestural i/o, recombinant networking, and real-world pixels. I have tried to put some brief explanation about these 3 concepts below the video.