This is a ridiculous non-answer. The Windows site your link take people to suggests the app could be hidden by "parental controls" or not available in the U.S. Really? No way Windows is working to address their lack of app support. That is exactly why the Surface will always be a niche item for specialty users. It's an incredible shame that Windows doesn't take ownership of the problems associated with their app store. That is exactly why Windows 8 and 10 will eventually be replaced with something else on personal computers.
They should apologize for wasting our time and money on a poorly conceived product. I do own 4 Windows computers and I have always bought Windows computers since Windows 95 so I'm not abandoning Windows, I feel like Microsoft is abandoning me.