From The Grauniad via Big Think:
What's the Latest Development?
Although Twitter and Facebook have played a key role in the recent London riots, police believe that for the first time there, BlackBerry Messenger (BBM) was the main and favored organizational tool. Why? Unlike text messaging or Twitter, BBM is a free, private social network where almost all messages are encrypted when they leave the sender's phone–meaning that many messages are untraceable by the authorities....MOREAlthough they no longer make the typos, including misspelling their own name, that won them the garbled appelation, the folks at the Guardian did register the domain name grauniad.co.uk.
If you paste it in your address bar you'll go straight to the paper.