It is great when walking or riding the bus/subway. Having anything except critical driving information such as speed presented in a Heads Up Display fashion is a distraction. Especially when going 80mph with other vehicles on the road.
Book her!
1 anecdote vs 3 anecdotes... If only anecdotes proved anything in a debate.
I wear it all the time when I drive and I've even traveled at ~95mph for a sustained period of time on the toll road nearby. In addition it is worth mentioning that I rarely look at it while I'm moving.
And that's why I don't drive.
Trust me, I'd prefer no person be allowed to drive. It is insanely dangerous and most people are really bad at it. I worked on autonomous cars about five years ago and I cannot wait for the technology to be consumer ready.
I too cannot wait for autonomous cars; I hope a day will come when I can actually use one without needing a license! Luckily, where I live, public transport is good enough that I would only really benefit from a car a handful of times each year, and I'm happy to forgo that for the benefits - financial, environmental, safety, etc.
The HUD is less distracting than the alternatives.
The only devices that can actively command your attention are the gauges & lights in the instrument cluster (which are all important to driving safely) and possibly the screen on your radio. Speaking of which, I hated the old radio on my old car, because it was too bright and had too much activity on the display.
You forgot climate control, cruise control, a confusing array of wiper settings, CD controls, radio, bluetooth, GPS, fuel efficiency feedback and probably a few others I didn't think of right off the top of my head. The point is not that cars are insanely distracting, but just that Glass is probably not the most distracting thing in your car.
Bluetooth integration assumes people are going to use their phones either way, and thus handsfree is the safer choice. GPS informs drivers in advance so they don't have to swerve across seven lanes of traffic to make their exit.
My point is, what problem does Glass solve that makes it worth the risk?
If so, it already incorporates some of those functions.