Is a visual search engine in our future?

Via Slashdot comes word of a computer vision researcher working to develop a sort of visual Google. From the story:

Let’s say you’re standing in front of the Mona Lisa in the Louvre. You take a snapshot with your cameraphone and instantly receive an audio-visual narrative about the painting. Then you step out of the Louvre and see a cafe. Should you go in? Take a shot from the other side of the street and a restaurant guide will appear on your phone. You sit down inside, but perhaps your French is a little rusty. You take a picture of the menu and a dictionary comes up to translate.