What-are-some-apps-one-could-build-for-Google-Glass-and-the-hypothetical-"Apple-Wearable-iDevice"?

What are some apps one could build for <a href="http://glass-apps.org/google-glass" title="Google Glass">Google Glass</a> the hypothetical "Apple Wearable iDevice"? <br/> http://www.quora.com/Google-Glass-4/What-are-some-apps-one-could-build-for-Google-Glass-and-the-hypothetical-Apple-Wearable-iDevice