How can I make iPhone clock alarms obey vibrate-only mode? In the Clock app, if I use a timer or alarm that goes off while my iPhone is on vibrate mode, the alarm sound still goes off.  Is there a way to make it obey the vibrate mode?  Or a way to tell it whether or not to ignore it?
Calendar alarms obey the mute switch.  Clock alarms do not.  

Personally, I consider this a feature and not a bug--but I can understand why you'd at least want the option.

However, short of jailbreaking, there is currently no way to change this behavior in the Apple-provided applications.