If you have ever thought of GPS units as more of a joke than a necessity, then you will love 'Crossroads' from Garvin Nolte. 'Crossroads' shows what happens when 25 GPS units try to give the same directions at the same time.
It is actually pretty hilarious listening to multiple GPS units trying to talk over one another. Garvin Nolte has successfully managed to make an accepted piece of technology look like a hinderance rather than helpful. Back to the road maps!