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"Jeremy Bailenson, who leads Stanford University's Virtual Human Interaction lab, says that approach breaks new ground. Communication in virtual worlds has long been limited, he says, by a gap between how realistic an avatar could look and how realistically it could behave. "Second Life had fairly realistic faces, but there was no to way to control them," he says. "High Fidelity has solved that problem." When he recently tried Rosedale's technology, "the experience I got was 'It really feels like there's another person here,'" Bailenson says."

"One of Magic Leap's patents describes how such a device, dubbed a WRAP, for "waveguide reflector array projector," would operate. The display would be made up of an array of many small curved mirrors; light would be delivered to that array via optical fiber, and each of the tiny elements would reflect some of that light to create the light field for a particular point in 3-D space. The array could be semi-transparent to allow a person to see the real world at the same time."

"Everyone is tentatively venturing into a new landscape here. Most projects focus on the ability of Google Glass to capture first-person perspective and hands-free video, such as recording with Glass within and outside of the classroom. The same goes for the Narrative Clip, which works great for capturing images during field trips or lab experiments. I think that the most common applications will be students or faculty capturing video and, for the brave, some applications that can work for online teaching, videoconferencing and one-on-one sessions, such as connecting with experts and mentors to provide coaching and feedback. In addition, we are starting to see some interesting applications for students with disabilities, in which Google Glass or other wearables can provide visual, auditory and physical assistance."