First look at Nokia 'flagship' mobile phone Lumia 925

Nokia has launched a new "flagship" smartphone, the Lumia 925, a lighter, slimmer successor to the Lumia 920.

Rory Cellan-Jones went to Nokia's London offices to see the phone, and ask Stefan Pannenbecker, who heads up the company's global product design, what will make the Lumia 925 stand out from the crowd.