This will show you how to download content purchased in tunes automatically in your iphone and ipad [and in itunes on your computer too]
the new icloud features look cool. they enable you to have all the things you buy in itunes available on all of your devices. automatically.
to enable it on your iphone / ipad
1) open settings > store
2) toggle the things you want to download automatically.
to enable it in your itunes on your computer
1) open itunes > preferences > store
2) tick the things you want to download automatically.
now when you buy something on your ipad or iphone it will download in your itunes on your computer automatically. and if you buy something on your computer then it will download on your iphone / ipad too :)