The iTunes page says:
HeadyUp shows you what’s happening around you in real time through a sleek display of photos and adapts to your location to provide relevant content anywhere you go, on the go.
That’s cool, because if you want local news and events like me, the app will keep you aware of your local happenings. I added it and once it got my location, I saw photos that were added in my town. Very cool!
This is great for travel and to help with sightseeing!