SixSense: Technology That Puts a Phone (and More) on Your Head

The guy speaking in this video, Pranav Mistry, is a PhD student in the Fluid Interfaces Group at MIT's Media Lab. Before his studies at MIT, he worked with Microsoft as a UX researcher; he's a graduate of IIT. Mistry is passionate about integrating the digital informational experience with our real-world interactions.
Some previous projects from Mistry's work at MIT includes intelligent sticky notes, Quickies, that can be searched and can send reminders; a pen that draws in 3D; and TaPuMa, a tangible public map that can act as Google of physical world. His research interests also include Gestural and Tangible Interaction, Ubiquitous Computing, AI, Machine Vision, Collective Intelligence and Robotics.

The video is pretty awesome, and it shows how amazing the future of wearable technology and technology that interacts with the real world can be.