Assuming-no-useful-computer-vision,-what-are-the-most-useful-applications-of-Google-Glass?

Assuming no useful computer vision, what are the most useful applications of <a href="http://glass-apps.org/google-glass" title="Google Glass">Google Glasses</a>s? <br/> http://www.quora.com/Google-Glass-4/Assuming-no-useful-computer-vision-what-are-the-most-useful-applications-of-Google-Glass