Volcari recently released a public beta of a cool new application called YouAreHere. I have never seen an app like this so I thought it would be fun to mention. The app lets you take a picture of a amusement park or zoo fold out paper map or download it from the web and then the app will tell you where you are while you are scrolling through the map using your GPS.
The app is attempting to replace the paper foldout maps but I am not sure how amazing of an experience that would be. Still I have to give Volcari props for creating such an innovative idea. I think they could do really well by mobilizing the maps for amusement parks and selling it to the amusement parks as a service.
If you want to check out the beta of YouAreHere you can find it in the store at this link