What's-the-most-important-problem-that-Project-Glass-can-solve?

What's the most important problem that Project <a href="http://glass-apps.org/google-glass" title="Google Glass">Google Glasses</a> can solve? <br/> http://www.quora.com/Google-Glass-4/Whats-the-most-important-problem-that-Project-Glass-can-solve