I can think of one valid use of the Tweetstorm, which you haven't identified, and that's to associate Tweets on a single subject spread across time. So, when l

I can think of one valid use of the Tweetstorm, which you haven't identified, and that's to associate Tweets on a single subject spread across time. So, when live Tweeting from a conference or other event, using the plus button to add another tweet and group them together seems rather useful, and not necessarily driven by length limitations.