Would-it-be-practical-or-desirable-to-add-something-like-IR-detection-"screen"-control-to-project-glass?

Would it be practical or desirable to add something like IR detection "screen" control to project <a href="http://glass-apps.org/google-glass" title="Google Glass">Google Glasses</a>? <br/> http://www.quora.com/Google-Glass-4/Would-it-be-practical-or-desirable-to-add-something-like-IR-detection-screen-control-to-project-glass