Mutator: Really Mute Your iPhone

Reminded of when this happened, because mute on the iphone doesn't mute the alarm, I guess:<p><a href="http://betabeat.com/2012/01/man-whose-iphone-interrupted-new-york-philharmonic-hasnt-slept-in-two-days-its-horrible-horrible/" rel="nofollow">http://betabeat.com/2012/01/man-whose-iphone-interrupted-new...</a>

If you truly need your phone to be silent, why not just turn the volume down to 0?

Is this the same as plugging in headphones?