> Isn't it much more intuitive to say to the computer "play 10 random country" than enunciate a succession of commands / menu items?
Have you ever tried to interact with one of those "natural language" telephone systems? I loath the whole experience. Discoverability is either painful (waiting for a read-through of your options) or futile (guessing blindly and not knowing whether it is your word choice or enunciation that is to blame).