The latest feature which Android phones are going to have is called Google Goggles, well actually this is visual search. Imagine going to a place where you need to find info on a certain building or a landmark. The obvious way would be to take out a tourist map or ask someone nearby, but with Google Goggles proud owners of Android devices will be able to snap the picture of that feature and hit the search button and let Google handle form there on. With in seconds audio/visual results will be displayed providing info about the landmark.
This certainly sounds like a useful feature for tourists. And yes this might as well come handy in case one gets lost in a new city. Watch the video here.