RIM promises to work closely with police after claims that rioters spread destruction across London, Birmingham and Liverpool last night. Riots hit Hackney, Peckham, Clapham, Croydon, Ealing and other areas, after action in Tottenham and Brixton at the weekend. London’s Metropolitan Police have vowed to track down people who posted “inflammatory” messages on the BlackBerry Messenger network, as well as on Twitter and Facebook. RIM can still be compelled to hand over user information to the police.”]