Point it down the street to have great restaurants highlighted?
Point it at the sky to get astronomical facts?
Point it at tourist landmarks to find out about them?
Point it anywhere to see where athletes/runners/cyclists have run and in what time?
Visualise all historical car accidents at a given location?
Visualise all hidden infrastructure, underground gas lines etc?
See history overlaid on the present?
Visualise public transport routes?
Show "upcoming events at this venue" as you pass theatres, cinemas, stadiums?