I would like to see volume mute/unmute added as a hardware button option in the WM Smartphone version. There are times when I know how to get most of the way somewhere, but only need Mapopolis for the last few turns. Having to listen to the navigation prompts for the entire drive gets pretty old when trying to carry a conversation with someone else in the car, or when listening to audio books. However, having to durn the volume down involves 5 presses of the volume button (on WM Smartphones). If I could simply press a hardware button (I would map it to the * key, I could easily have control of when I want to hear the prompts. I would think this would be a simple bit of programming, and would love to see it implemented in the next revision.