“Loopt” - Free - 6/10
This App shows you where you, and your other friends with Loopt are. You have to “ping” them and they must approve before you can see their location. So you can’t just stalk people with iPhones.
Just been playing with it since last night, and I can already tell it isn’t that accurate. I’m apparently sitting in the middle of Lake erie right now, while at work off of Tifft St, about a mile from the water. It could definitely come in handy on those nights when your out DT with a group of people barhopping, and trying to meet up with a bunch of different people. But again, it would need to be more accurate before it was truly useful and I guess it depends on where you are.
You can also use it to find restaurants and bars in the area you are in. But there are plenty of other apps that do that as well.