I think there are a couple of ways to accomplish the underlying goal (viz. getting people to post on their own sites while keeping the ability to POSSE to silos). It would be kind of silly, in my opinion, to reproduce the “tweetstorm” UI on a blog where you aren’t restricted to 140-character chunks. But it would make sense to offer a UI to compose a blog post normally and then automatically break it into tweet-sized pieces for POSSEing to Twitter. The blog version would appear like a normal blog post; the Twitter version would appear like a “normal” tweetstorm.