uSwitch: 'O2's problem shows we're not ready for Olympic crowds'
Ernest Doku, uSwitch.com's technology expert has told ITV News that mobile network provider O2's service failure yesterday only "highlighted" that UK mobile networks were "not prepared" for the influx expected during the London 2012 Games.
O2 update: Tips for angry customers
Thousands of disgruntled O2 customers took to Twitter this morning to vent their frustration at still being unable to use their phones.
Whats up with the O2 phone network (that's gone down)
Thousands of customers face a second day of disruption with O2's mobile network, despite reassurances that it has been partially restored.
O2 customers still struggling to use mobile phones
Thousands of O2 customers across the country were still unable to use their mobile phones today.