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 Splash Gene:
Best wallpapers & backgrounds HD app offer high definition wallpapers for iPad. This is the best wallpaper app ever!!! I would pay money for this!! It has cool wallpapers. It's so hard to choose which one to make my main screen. Awesome app!!!!! More added every day. You can easily download wallpapers you like with this app. Features - Most faster wallpaper download speed. - Wallpaper include 3D, Art, Animal, Fantasy, Illusion, Other, Abstract, Sports,Flower, Bird, Car, Food, City ,Holiday and so on and more - Browse high quality wallpapers, all optimized for your screen - New wallpapers updated daily - Cool friendly UI design for u , easily use All this and more absolutely FREE! Enjoy!