NTT DoCoMo is showing off a set of binoculars equipped with object-recognition capability. The binocs identify certain objects and uses image acquisition to display pertinent details about whatever you're staring at. The examples they offer include looking at a passing plane and seeing the flight number and destination displayed in the eyepiece, or looking at a flower and having its name shown to you. This sort of technology could make its way into camera phones and the like, perhaps affording us an automatic photo-tagging system somewhere down the road.
Of course, we're happy to aimlessly pontificate about this technology since we have no idea how they actually work.