"Content must loop", so even material with a jerky loop is allowed?
My friend I think you missed the second part of that quote. "Content must loop. An animated wallpaper should have a reasonably transitioning loop
The way I read it, Dreams that loop horribly from the last frame to the first will not be allowed.
Technically, ANY video used as a background WILL loop... after all, the video ends at the last frame and begins again at frame 1. If this is not considered a loop by all means correct me (and I'm not being sarcastic, please do).
All that being said, the first regulation stated above simply implies that if a .Dream wallpaper does not transition from the last frame of the video to the first frame adequately, then it will not be accepted.