Or, I would suppose, x86 and x64 apps. That's the main reason I run Windows; the mile-wide app compatibility.
Looks like at least 32bit x86 apps will run. http://www.zdnet.com/article/windows-10-on-arm-it-will-be-mo...
Looks like at least 32bit x86 apps will run. http://www.zdnet.com/article/windows-10-on-arm-it-will-be-mo...
Edit: found this ARM compatibility chart in the zdnet article
https://zdnet3.cbsistatic.com/hub/i/r/2018/02/19/b2c823f6-76...
And I get that you use x64 Windows for the compatibility, but this isn't supposed to replace that Windows. This is a product for an entirely different market: the market for tablets and netbooks.