I'd venture a bet that most of the advancement of levels 2 & 3 happen in private and/or are in use in areas you aren't already thinking of. Have a look at the

I'd venture a bet that most of the advancement of levels 2 & 3 happen in private and/or are in use in areas you aren't already thinking of. Have a look at the conversational examples Voicebox lists on their website: http://www.voicebox.com/technology/ http://www.voicebox.com/technology/ (disclosure: I worked there for a while.) The wide-open "talk about anything" software is still a few years out, I think. But, having a "human-like" conversation/interaction with a bot/AI already happens today.