The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From GeoQuest Technologies:
Explore the hidden treasures of Bryce Canyon Country: one of America's most scenic and accessible outdoor destinations. Take in the awesome grandeur of Cedar Breaks, discover the rugged beauty of the Grand Staircase/Escalante National Monument, or explore the breathtaking miles of Scenic Byway 12, Utah's first All-American Road. You'll Utah's incomparable National Parks, including Capitol Reef, at your fingertips and before your very eyes. If you have an iPhone, enjoy GPS content triggering while exploring this colored wilderness, where adventure awaits anyone willing to find it. Features: GPS-enabled map (iPod and non-3G iPads do not have GPS functionality) Host Lynn Chamberlain explains the history and fascinating facts about the area in exciting video segments. Web-enabled features allow you to view accomodations in several of the areas highlighted (requires internet connection).