The Blackberry has gone from executive toy to a rioters best friend in recent days. Police have found much of the violent disorder has been orchestrated by social networks. Whether this be twitter, facebook or the blackberry messenger. The rioters however have been foiled by Blackberry itself who have given over details of the alleged rioters, despite their messages being encrypted.
Its also worth noting that the cleanup operation is being helped by social networks with coordination taking place over a variety of platforms and services.