The innovations around Twitter just keep on coming, proving, if nothing else, that an open platform is the best spur to innovation there is.
Meanwhile, the energetic Dave Winer posted about his mash-up with Disqus which allow you to start a discussion from a single thread.
And yesterday I also read about the latest iPhone app to take advantage of the open Twitter APIs, Twuner, which will read you your tweets on your iPhone.
Twitter may be struggling for a business model, but it is a beacon for innovation in the tech space second to none at the moment. Keep your fingers crossed they remain independent.