Windows Phone 8 is launching its third update plus a new developer preview program. Windows Phone 8 Update 3 includes a bigger Start screen, a new customizable Driving Mode and better accessibility options. There is a new preview program to help developers keep their apps running smoothly on the software update, also a Driving Mode which allows users to send automatic replies to people who call or text whilst they are driving. The updates pave the way for future Windows Phone devices with 5- and 6-inch touch screens. Windows Phone reinforced its position as a top three smartphone operating system in the second quarter of this year and was the fastest-growing platform among the leading operating systems with 77.6 per cent year-over-year gain, according to IDC.