Interesting how that movie is so often referenced for the technologies it depicted. I also remember watching it and thinking it had been influenced in some part by Neal Stephenson's The Diamond Age.
This particular ad is kind of a stunt I think, but it does point toward ideas for the future. I tend to think this kind of thing will be driven by displays that talk to our phones (err, mobile computing devices) about us.
And before you say, oh, we'll never let ads talk to our phones about us behind our backs, let me just say oh yes, we will.