i have all my pictures stored in iPhoto and my music stored in itunes on my mac.ive just purchased an iPad and tried to set up iCloud I've set up photo stream and it seems my pictures are taking up space on my iPad which defeats the object of iCloud. also my music is being downloaded to my ipad and taking up space.the only thing that seems to be in the cloud are my bookmarks.what is the saying about iCloud 'IT JUST WORKS' can someone please help what am i doing wrong.