Nice to see they are open-sourcing MoltenVK. It's a cool project that I thing would have faced significantly lower adoption as a commercial project.

There's also the Vulkan Portability Initiative in this area, which gfx-rs seems to be making some inroads into.

2 hours ago, mike44 said:

Isn't there a similar Khronos project for DX12 to Vulkan that would cover Xbox?

I've seen a MoltenD3D12 mentioned, which would allow Vulkan to run on UWP... 

However, keep in mind that console versions of APIs often differ from PC ones. Xbone supports D3D12 for UWP apps, but D3D12.x for native games. 

This is quite cool. Hopefully will make Feral's job easier with their ports.