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 Gerald Manau:
Addicting Balls is one of those addictive games for ipad which you will be hocked. You can not stop playing and competing with your friends.Will you be able to get to level 20? :)Addicting Balls is about fill 60% of the playing area by creating new balls. Beware with small balls that they will try to prevent you accomplish your mission.In each level you have a limited number of balls you can create to fill 60% of the playing area. Once exceeded the limit, you will lose a life for each extra ball that you use.You will receive more points for each small area above 60%. Each ball and each life you spend will give you more points.Enjoy it!