Mutator: Really Mute Your iPhone

Reminded of when this happened, because mute on the iphone doesn't mute the alarm, I guess:

http://betabeat.com/2012/01/man-whose-iphone-interrupted-new...

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?

Yes except this thing has no speaker for the sound to come out of. So the phone should just pump the sound into the "headphones" and all will be well.