It's cute, but really doesn't do much to address the issue of being lost in a city. When I'm lost in a city, my problem isn't whether I'm heading north or east, or where the nearest station is - it's whether I took the wrong turn three blocks ago, and where that side street I'm looking for is.
Once you're lost, my old navigation method can work wonders, and it's really simple: Turn onto progressively busier streets (determined by traffic control, not by current traffic).
You made it to your destination in some small residential area, but how are you ever going to find your way out of here? Just drive straight along until you come up to an intersection. You've got a stop/yield sign, and they have nothing? Turn. You're on a plain two-lane street, and the crossing street is divided with a boulevard? Turn. You both have lights, but they have the crossing button or turn signals? Turn.
In very short order you'll find yourself on a major street, which is a street you'll be more likely to recognize and be famliar with. You're no longer lost and can try locating your destination again.
These are not basic navigation skills, which you should have already to make good use of them, they are to help you if you know the route to take but don't have a point of interest or lost your bearings.
