The potential is, that these applications react to the world you are in. For example the knowledge that there are products on the shelf and I want the cheapest

The potential is, that these applications react to the world you are in. For example the knowledge that there are products on the shelf and I want the cheapest and the best. The other thing, that I don't need to carry a camera, a phone, a book, a laptop, an ipod or like paper, pencil, wallet, puppy, drum, guitar, tv, different looking shirt, shoe, wallpaper... So many things could be virtual. (I mean augmented with the real world.)