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.
Caught in the trees, but you know the wind is going to move your 8-iron shot once it gets out? Not so sure that the flag is telling you the truth? Now you can point your iPhone at the pin and see how to Play the Wind!