*** Storage: https://github.com/mozilla-b2g/gaia/blob/master/apps/settings/js/app_storage.js
** Environment:
*** Ambient Light: http://www.w3.org/TR/ambient-light/
-*** Proximity: http://www.w3.org/TR/2012/WD-proximity-20120712/
+*** Proximity: http://www.w3.org/TR/2012/WD-proximity-20120712/ - https://hacks.mozilla.org/2013/06/the-proximity-api/
** Audio / Video analysis
*** histograms, etc.
*** via WebRTC: https://wiki.mozilla.org/Platform/Features/VideoConferencing