Enhancing User Interaction With First Person User Interface
http://www.smashingmagazine.com/2009/09/21/enhancing-user-interaction-with-first-person-user-interface/

Wroblewski, Luke
Smashing
2009

Abstract:

First person user interfaces can be a good fit for applications that allow people to navigate the real world, “augment” their immediate surroundings with relevant information, and interact with objects or people directly around them.