Story

My random, uniformed guess is that while the technology is close to being usable, the acceptance of it is too low. I read someone else say this before: the progression of technology people would have accepted is : dumb mobile phone => feature phone => smart phone => smart watch => google glass. Smart watches fit many of the proposed use cases of google glass without the requirement of wearing glasses or spy like fears. Information at a glance without complicated UIs.

The name of android *wearables* also indicates that they have more than just watches in mind. I wouldn't be suprised to see a consumer version of glass running android wearable.