A team of researchers at MIT have been working this year on a system that can track people through walls with impressive accuracy using radio waves. The team showed the system earlier this month. IDG News Service made a video of the demo, which took place at MIT’s Computer Science and Artificial Laboratory (CSAIL) in Cambridge, Massachusetts. The system is still in a proof of concept stage but the team spoke with reps from wireless and component companies during an open house recently. The system was developed by Professor and CSAIL Principal Investigator Dina Katabi and PhD student Fadel Adib. The technology uses low-power signals to track human movement and to decipher motions behind walls. Adib said their accuracy is higher than even state of the art Wi-Fi localization.Read more at: http://phys.org/news/2013-10-mit-team-tracks-people-walls.html#jCp

http://phys.org/news/2013-10-mit-team-tracks-people-walls.html

Avegant has produced this device, a wearable prototype he simply calls the Virtual Retinal Display for now. It could be most closely compared to the Oculus Rift, a full-field wearable display that presents a 3D image to the wearer. However, where the Rift cunningly relies on a single LCD panel and some simple optics to work its magic, Avegant’s product actually projects two discrete images directly onto the retinas of the wearer — as is not-so-subtly implied by the name.

http://reviews.cnet.com/wearable-tech/avegant-virtual-retinal-display/4505-34900_7-35828603.html

Freaky but awesome, based on military tech but supposed to be much more relaxing for the eyes than lcd tech, it has xga resolution.