launch of the Nokia-based smartphone or windows operating system this phone will be on exhibition "NOKIA WORLD" which was held on 26-27 October 2011 in london. Windows operating system is arefinement of the 'windows mango'. With this new smartphone introduced in the estimate nokia will compete with several leading smartphones, like Apple's iPhone 4S, Google Nexus, Samsung Galaxy SII and the Motorola Razr Droid. Source of leak estimate to 3 smartphone's name is 800, Ace and Sabre .