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 Adam Balzan:
Todays Mood lets you keep track of how your feeling.Choose from over 50 Pre set Moods or create your own mood with a new or existing image. Original Moods have intresting details such as the Meaning, Origin, Synonyms, Antonym, Anagrams and Random FactsShare your mood with facebook or twitter (iOS 5 required) When setting todays mood you can store a note about how your feeling. this personal data is only stored on your iOS device View your mood history and notes in a simple list viewChange any moods image to a new image from your devices camera or Camera roll Find the mood quickly by using the quick search bar at the top of the List viewCommunity Mood allows you to see what other users have set as their mood today, in the last 7 days and in the last month. When you go into the community section of the app it will automatically download new moods and thier images to grow your mood collection