In a sense, you already have, by requiring the content to be hosted elsewhere and releasing the pulling code. There is beauty in simple tools like this one. Kudos.

Yes. And i must say that the code is very small and well written.

maybe just adding a basic feed aggregator, so that you can easily see your friends' updates, pulling in their disqus comment threads (I have no idea whether this is feasible, i've never implemented disqus).