I would like to suggest a button added to the play screen that will allow you to mute the sound as the mute button does in the options.
Sometimes i get phone calls, Skype calls, Yahoo IM calls and would like to turn the volume of the game off while I talk. It takes a while to open the options window and mute the sounds then going back to unmute it after the call. I can't turn off the system volume because it mutes the call, also.
Is this easy to add? It would be nice. Does anyone else think so?