Application development is a vital element for the success of any mobile platform in the current market scenario. Nokia , after choosing Windows Phone as its flagship operating system, device, is aware that the development of apps for the platform of Redmond is a fundamental objective. To encourage developers to build applications, Nokia has recently launched a new initiative with the Site Code Warrior : a space in which Windows Phone users and developers can meet, exchange ideas on useful applications to make and vote for the most deserving. To promote the initiative, the Finnish house has organized a tour that will visit major U.S. cities , during which prizes will be distributed to the most skilled developers.