I was thinking about this the other day: whatever happened to all the users who got Glass? I follow someone on YouTube who was 'granted' one but I never saw anything from him using it.
On-topic, I rather like this. It wasn't very in-depth, but it'll be interesting to see if reviews move toward this if Glass picks up, versus reviewers looking at a camera.
I was surprised by the UX and UI of the two screens (big screen in the middle and small one for odometer): it looks pretty bad visually, or at least seriously lacking inspiration; and the UX doesn't seem good for something you will need to work with while driving.