Nokia Windows phone 8 launch

                     Nokia unveiled the Lumia 920 and 820 with PureView, its first smartphones using Windows 8 software, in a joint event with Microsoft in New York, at a critical time for both companies.Nokia has finally launched its smart phone handsets powered by Microsoft's Windows Phone 8 operating system. Microsoft and Nokia unveiled the new Lumia 820 and 920 smartphones at a special event in New York.According to the BBC, the new Lumia 920 features wireless charging and a 'PureView' camera, which the mobile firm said offered better video and still images than rival smartphones. It also features several Nokia-only functions designed to make it stand out from other Windows Phone 8 devices.The firm claimed that 'floating lens technology' meant the handset could capture up to 10 times the amount of light than other handsets.
 Design and screen:
The Nokia Lumia 920 has an almost identical physical design as the Lumia 900 before it. This time, the handset comes in Sunshine Yellow, but Nokia will also issue it in Lipstick Red, and Slate Grey.While most of the polycarbonate body remains unchanged, Nokia has improved the screen. The Lumia 920 gets a 4.5-inch Nokia PureMotion HD Plus display, which features a WXGA resolution (1,280x768 pixels), a slightly higher resolution than the standard HD (1,280x720 pixels). It has a fast refresh rate that removes flickers. Nokia also claims it's brighter than rival phones, but we'll have to see about that.