There are awesome apps using the iPhone's built-in GPS in innovative ways.
1geocaching
iPhone and iPad apps tagged "geocaching."

The simplest navigation app you could ever want
A Distance meter and an arrow which points toward the destination. Often this is all you need to quickly get to a location. Developed by Agile Dimension Inc., FastTrack Navigator for iPhone helps people who don't want or need to use a map. Navigation made super easy. The new version 1.

GeoGuide 3D Guides Outdoor Adventurers Where Other Maps Go Blank
Outdoor athletes, hikers and geocachers know that a map is only as good as it's off-road navigation. Unfortunately, this is precisely where most traditional navigation systems fail, according to MovingWorld today. Outside of the road system, say the makers of GeoGuide 3D Worldwide Maps and Tracks 2.

Catch the Kid App Tracks Billy the Kid in New Mexico for $10,000 Award
Geochaching and iPhone apps, two of my favorite things, have combined to bring a bit of fun and awareness to the state of New Mexico.

Geocaching guiding you for hours of hidden treasure fun
Geocaching is basically a game of treasure hunting. When I first heard about it a year ago I had no idea how remarkably popular geocaching is. It’s a game played by untold numbers of people throughout the world.
Dreamwalk is a Bargain Hunter's Dream
Just released this week, Dreamwalk is touted as “the mobile treasure hunt” and in essence, that’s pretty much what it is. It sort of equates to commercialized geocaching, but it’s really a pretty simple concept.





