You are at Fisherman's Wharf in San Francisco and you are about to start your car towards Sausalito, but you want to know before you reach there if the place is too crowded for your liking. Comes Finderous to your rescue. Fire a question at Sausalito, ask people already present there to send you images of the place, and lo, within minutes you get the "picture".
Stay up-to-date on all the cool apps the kids are fiddling with these days. Or if you're a kid, help your parents log-in to their iTunes account. They would like apps, too.