This is popping up on every board I'm on. I like the basic idea of it but have a number of issues with it.
1) $1400 price tag. You can't put a price on safety but I CAN put a price on a disposable item. Helmets have a usable life span of 5-7 years (i typically toss mine around 4-5) before they are considered by the manufacturer to be unsafe. Not to mention that a helmet is only good for one impact. Drop that thing off your handlebars and there goes your 1400.
2) Unknown brand with unproven crash protection. Yes they passed DOT and ECE which demonstrates the helmet will protect you in a crash. But 1/2 helmets have also passed DOT and offer zero protection to face, back of the head, ears, etc. so the standards alone are not proof enough to me of the helmet's crash worthiness. Show me actual data from a third party test so I know my head is gonna still be intact if I take a hit
3) Distracting. I'd be ok with a HUD that shows speed, rpm, gear, and maybe even small icons indicating the next turn and distance to it. These are all things that the average rider is looking at regularly while riding and having that info in a HUD would eliminate the need to look down at gauges/gps. But the rearview is distracting as all hell. Even just watching the video I found myself paying as much or more attention to the rearview than the actual view. Yes it's helpful in certain circumstances (car not stopping behind you at a light for instance) and could potentially save a life, but that level of distraction could also cost many lives if someone is watching the view behind instead of looking at the car or corner ahead.
4) Weight. No where on the site is the weight of the helmet listed and while I haven't searched every thread I've been through the forum there and the question is repeatedly asked with no response. That implies (though certainly doesn't confirm) that this thing is going to weigh a lot (to be expected given all the electronics + battery). I dunno about you guys but a lot of weight bobbling around on my neck for extended periods does nothing to leave me feeling up for a long ride.
For any new tech there are always naysayers that are quick to point out the flaws while ignoring the benefits. I'm not trying to say that the idea or the execution is bad. I don't have one in hand to try it out so I can only speak based on the information I have. I would like very much to have a chance to ride with one and see what it's like, maybe I would change my mind about it. Until such an opportunity presents itself, I can't imagine spending that kind of money on an idea.