John James Jacoby has created Publishiza, which is a plugin that allows one to, “compose and publish a Tweetstorm” in WordPress. I personally tried this (David Bisset speaking!) and it does work like a charm. If it stops me from Tweetstorming exclusively on Twitter remains to be seen.
Brian's additional and very important note: I hope JJJ considers calling these throgs. Also, that's a lot of throgging news in two days. Finally, I hate Tweetstorms.