Last Bus Home has the details. I hope it's true, I'm glad, can't be doing with it at all myself. I think I said before, it seems to me like someone thought blogging was a bit of a hassle, having to think of something to say and then saying it, if only there was a way I could just go "Hey!" and let people know I was there; all the attention seeking, none of the content. And that's twitter.
The "death" that I have greatly exaggerated is that they've turned off the text messaging part of it in the UK.