Up to 500 million Windows 8 users by end of 2013, says Ballmer May 22, 2012 by admin Tweet Windows 8 will be used by up to 500 million people by the end of 2013, according to a new prediction by Microsoft CEO Steve Ballmer. He also said that Skype for Windows 8 is in development. Read more… Neowin Related Posts:Ex Microsoft CEO Steve Ballmer originally wanted to…Microsoft's first Windows 11 development build that…240 million PCs could end up in landfills when…Microsoft says Windows 11 and a new PC is the way…Remember Skype? 8.90 is out on all platforms with…