I tried the hololens at the Microsoft store on fifth avenue.  I got 3 five minute demos: a 3d modeling app, a wristwatch marketing presentation and the robots attack video game.  The device is really quite amazing.  Being wireless seems like a big deal to me.  The limited field of view is certainly an issue, but seeing objects suspended in front of you is surreal and futuristic.  With cardboard and oculus I got motion sickness.  Holo lens didn&#x27;t cause vertigo, but it made me feel like I had eye fatigue.  I don&#x27;t know a better way to describe it.  The possibilities for these devices are amazing, I hope they live up to the expectation.<p>To me the killer app for these would be football replays and extra overlays beyond TV.