During the conference ' The Next Generation in Development ', held in Hong Kong , Microsoft has confirmed that the next update of the operating system Windows phone will be called ' Tango '  It will not be a 'major upgrade' like the Mango version 7.5 which will be released in the coming weeks but a ' minor upgrade 'which will affect mainly China and India and will provide an opportunity for manufacturers to produce even low-end devices will be supported as less powerful processors and low-resolution display .  After 'Tango' , Microsoft will release the update called 'Apollo' that will bring the operating system to Windows ...