The Daily Beast has run another piece on twitterature, which has been picked up by lots of other bloggers, including The Huffington Post! I see that yahoo also included it in their Daily Buzz bulletin.
I was also mentioned in this introduction to the whole topic on squidoo.
The only question I'm left with after reading all this is should it be Twit-Lit or Twitterature?
Either way I suppose I have to keep going now!