We have a demo android application (Android 4.0.3) that runs voice recognition as a service, and (continuosly) logs the results of the recognition on the view.
Every
This feature has been recently accepted but not yet available, see https://code.google.com/p/google-glass-api/issues/detail?id=245
You can load the additional mentioned apk to get the functionality for the mean time. See Using Android Speech Recognition APIs from Google Glass