As many expected and hoped, Microsoft is going to make the coming Windows Blue update to Windows 8 free for existing Windows 8 and Windows RT users. Microsoft's Windows Chief Financial Officer Tami Reller, during an appearance at the May 14 JP Morgan Technology, Media & Telecom Conference, shared the pricing news. Reller also acknowledged what those who've downloaded leaked builds of Blue have known for a while: Windows Blue is Windows 8.1.