Things like taking a picture of a product, and being able to order it straight away from Amazon. (big push behind the Firephone)

And then at some point, it'll become a live-streaming thing. i.e. instead of actually flipping out your phone and taking a picture, it'll be some google glass type thing. You walk past a store and you look at it and it's recognized instantly. You can then get the wiki page, the floor plan from gov records, its online store and opening times from various online repositories of such information. Of course this is already possible using GPS, just an example.