What do you think is missing in Flipboard? Instead of just an RSS reader with each feed being from one source, I'd like to be able to create topic-based "channels" where I can select a bunch of sources myself. This way I can specify many sources that map to one feed, and not end up with tons of feeds covering the same topic. Do you think this would be useful or unnecessary? Zite does this to some extent, but it doesn't let you truly create custom channels with custom sources and custom keywords to search those sources. Also, would you like other human "experts" picking articles for you? Or maybe see what your friends are reading and liking on the app?