1: http://arstechnica.com/information-technology/2013/04/google... 2: https://code.google.com/p/google-glass-kernel-source/ 3: https://developers.google.com/glass/tools-downloads/system
That is never true, ever, in any circumstance, with any system, ever.
Stop wishing for unicorns and come back to the real world.
The question is, is it reasonably safe, and does it help patient outcomes? Keep in mind, the more likely it is to improve patient outcomes, the more risk is considered acceptable.
The normal and promoted programming model is quite similar to Chromecast, where you push a subset of html pages to it and it displays them. That push occurs via your system sending a message to Google's server that pushes the update on the Glass.
[1] http://arstechnica.com/gadgets/2013/11/google-launches-glass...
I'd love to know more about that.