Microsoft appointed two executives to key posts overseeing projects related to mobile operating systems. Andrew Lees has been elevated to a new position overseeing the development of the Windows Phone software and Windows 8, the combined computer-and-tablet operating system the company expects to release in 2012. Lees had previously been in charge of the unit developing Windows Phone. Terry Myerson will assume the vacancy created by Lees's promotion. Myerson had been a corporate vice president in charge of engineering for Windows Phone. The changes were announced in an email to Microsoft staff by CEO Steve Ballmer and reported by the Wall Street Journal.
