It looks like Windows Phone 7 Mango will add support for front facing cameras on Windows Phone 7 devices, as the guys over at WPCentral have discovered a new icon within the camera function in Windows Phone 7.
The button looks like it can be used to toggle between front and rear facing cameras, and they have also found a reference to a ‘self portrait camera’ in the latest Beta 2 of Windows Phone 7.So it looks like support for front facing cameras and also video chat will be enabled with the release of Windows Phone 7 Mango