This is a great example of a rudimentary, but effective, UI for navigation. We played around a little with some heads-up devices back in the day, but we never had access to the good stuff (a la movie magic) so it never seemed appropriate. Fast forward a decade and wearable doesn’t have to mean a cockpit display as you walk down the street and augmented is more utilitarian. OK, enough with the mini-soapbox…on to the cool ideas.