There are enough sites and apps that create a "magazine" for you to consume as a reader (paper.li, Flipboard, etc.). What about those of us who want to create a magazine where we can pull in feeds from other publications, then drag-and-drop them into place? Different content types (tweets are different than blog posts are different than videos) get different sizes and display formats.
How would one "publish" this magazine? Maybe it's just continuously updated. How would the RSS feed look like? No internal links except to information about the site. All links, even in RSS, outbound to the original. Copyright? Especially with photos and images.