For me, voice control became refined and mainstream when I told my android phone "Navigate to <friend's name>" and it automatically pulled up Google Maps and s

For me, voice control became refined and mainstream when I told my android phone "Navigate to <friend's name>" and it automatically pulled up Google Maps and started turn-by-turn navigation. (Over a year ago.) But I don't really think voice control is going to be very useful except in situations where hands are too busy doing something else.