or Virtual i-Glasses? Still have mine, they were really quite good (for the time, near two decades ago), with decent field of view, usable resolution & color, a

or Virtual i-Glasses? Still have mine, they were really quite good (for the time, near two decades ago), with decent field of view, usable resolution & color, and pretty fast head tracking. The primary problem wasn't the technology, it was just getting buy-in from developers to include support in products. Magic Carpet showed it worked well with games, but alas few others had simple/robust support and demos only hold interest for a few minutes. Could have been so good, but suffered the chicken-and-egg problem: nobody supported it (despite being pretty simple to) because nobody else supported it.