Access my back up files in iCloud through iPod Touch or iPad
I am just a newbie here so pardon me if I ask basic questions. I have just upgraded my iTunes to its latest version and I just downloaded iOS5. I backed up all my files in iCloud. My question is can I still access my files using my iPod Touch or my iPad? Does my music and video files automatically stored in iCloud too? If so, will it take spaces on my devices or not? Can I stream videos from iCloud to my devices through Wi-Fi? I know these are just basic questions but please help me. Thanks a lot.