Microsoft last week announced it would open its Windows Holographic platform to partner firms looking to develop products for the Hololens ecosystem. Microsoft already is already working with a range of partners — including Intel, AMD, Qualcomm and others — to build a hardware ecosystem that can support mixed-reality environments, company officials said at Computex. The market for virtual reality is expected to grow to 80 million devices per year by 2020, noted Terry Myerson, executive vice president for Microsoft’s Windows and Devices Group.