I am not sure if this is anything significant but I heard blizzard is adding gamepad support and gamepad allows for some strange interfacing inconsistencies that I have experienced in other games like continuing to fly a plane in battlefield even though the menu is in your face and your mouse and keyboard wouldn't be able to do it with the menu currently on while game is running in background. Maybe there is a way to take advantage of something like how a gamepad works when blizzard allows for gamepad support.