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 Vail Resorts:
Unlock a whole new mountain experience with EpicMix at Vail, Breckenridge, Keystone, Beaver Creek, and Heavenly Resorts.- Track your vertical feet.- Earn digital Pins for your activity and achievements on the mountain.- Collect points for each digital Pin you earn and vertical foot skied/boarded.- Compete on the EpicMix leaderboards against strangers and Facebook friends.- See where your Facebook friends are riding/boarding and what theyve earned.- Connect with Facebook and Twitter to automatically share your achievements and check-ins.- Broadcast messages to everyone on the mountain, or just your friends and family. - Access trail maps, lift status, run conditions, weather reports, and the latest traffic info for all five mountains. Note: You must have an RF enabled Season Pass or Peaks Card to use EpicMix.