This is fun to see and all, but what has this got to do with 'hacker news'? There is no in-depth information about how it was built, how it was programmed or something like that. It's not a new concept, this has been done a lot of times. The video isn't even new, it's from january.
I really don't mean to be negative, but I just don't see why this is on the frontpage of hacker news.