Windows Phone 7 phone
Media playback is unsupported on your device
Video

Windows Phone 7: Microsoft's mobile operating system demo

Microsoft has launched its new mobile operating system, Windows Phone 7.

It features a variety of ways to reach friends through social networking sites as well as more traditional methods like email.

For the first time the gaming platform Xbox Live is integrated into the phone software.

Microsoft's Ashley Highfield has taken Rory Cellan-Jones through the features.

Go to next video: Full flash video on phones