Windows Phone 7 is a mobile operating system developed by Microsoft, and is the successor to its Windows Mobile platform. Unlike its predecessor, it is primarily aimed at the consumer market rather than the enterprise market. Windows Phone 7 was launched in Europe, Singapore and Australia on October 21, 2010, and in the US & Canada on November 8, 2010, with the rest of the world to follow in 2011. Microsoft had originally planned to continue the Windows Mobile line to Windows Mobile 7, based on an upgrade to the Windows Mobile platform, codenamed Photon. The original Photon and Windows Mobile 7 have since been scrapped; however, Microsoft decided to create a new mobile OS platform and officially announced Windows Phone 7 Series in its place.Microsoft has since renamed the operating system from Windows Phone 7 Series to Windows Phone 7.
