How-much-useful-do-you-think-the-Google-Glass-is-?-What-threats-do-you-think-it-can-pose?

How much useful do you think the <a href="http://glass-apps.org/google-glass" title="Google Glass">Google Glass</a> ? What threats do you think it can pose? <br/> http://www.quora.com/Google-Glass-4/How-much-useful-do-you-think-the-Google-Glass-is-What-threats-do-you-think-it-can-pose