Which-programming-language(s)-will-be-used-to-develop-for-Google-Glass?

Which programming language(s) will be used to develop for <a href="http://glass-apps.org/google-glass" title="Google Glass">Google Glasses</a>? <br/> http://www.quora.com/Google-Glass-4/Which-programming-language-s-will-be-used-to-develop-for-Google-Glass