I was just about to post this when decided to check for a previous post...luckly I did.
Supposedly this is going to be safer with all your speed, rpm and location info on the HUD (Heads Up Display) but I'm wondering if it won't be a distraction (i.e. speedos on your push bike and riding to things) or even reduce visiability with the optical display mounted in the field of vision.
Looks like an interesting toy though.