My main problem with the "mute" is that there is no visual indication whatsoever on the front of the device that it is enabled. So you have turn the phone on it

My main problem with the "mute" is that there is no visual indication whatsoever on the front of the device that it is enabled. So you have turn the phone on its side and peer at that teeeeeny little orange dot (even harder if you have any sort of case). One of the very few ways the wonderfully designed iPhone is arrogantly "broken". An Android-like (gasp!) icon on the toolbar would be nice.