alancronin writes: 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. Windows 8 is currently available via a handful of SKUs — Windows 8, Windows 8 Pro, Windows 8 Enterprise and Windows RT (not exactly Windows 8, but part of the family). She didn't provide more information about plans for the coming Blue SKUs. Reller also said today that Microsoft now has more than 70,000 Metro-Style/Windows Store apps in the Windows Store. She also noted that the final version of Windows Blue (both the Windows 8 and the RT flavors) will be made available to customers through the Windows Store once they are available.