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.
Wow! Wee! Uhh! Cheerful and friendly Mr. Cloud is flying in the sky while making colourful rainbows and happy faces. He knows how to cheer you up when you are down, and make you giggle when you are happy. Try it and you will see!