The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Steve Jung:
The American Taekwondo Association Tournament iPhone application is designed to assist both participants and non-participants in accessing information about the tournament. Users are able to access start times and locations of the tournament competitors as well as the judges who will oversee the matches. Users can also register for the event and offer feedback. The app also adds a camera functionality so users can snap their own photos and add custom ATA frames to share with friends!