title: Accessing rear facing camera on Glass
body: <p>I looked through the api, stackoverflow and google, and didn't find anything.   Is there a way in the API to access the camera that faces the eye?  I would like to be able to tell if the user's eye is open or closed...is this possible with this version of the GDK?</p>
  
  <p>Is that what the built in wink-to-take-a-picture app is doing?</p>