Nokia Lumia 900 Update Adds 'Flip-to-Silence' Feature

This is an Android feature offered in HTC phones since 2.2. I have this on my MyTouch4G (T-Mobile). Pick it up and the ringer will silence, flip it over the ringer will silence. If you are on a call, just bring the phone away from your face, and put it face down on something and it will turn on the speakerphone as well. Its a novel feature, that ironically, I found MOST convenient and the "move to silence" feature something ALL PHONES, even non-smartphones should have. I cant stand peoples blaring phones in public who are too stupid to silence the ringer - they keep looking at their phone "Should I answer?"