I downloaded QR Code Reader from the store. Works well.
So it's confirmed? There is no native way to do it (yet)? A 3rd party app is the only way? Ok then...
Another question, do you know of any other languages, other than English US, for which Cortana is available? I can't seem to download the "speech" package for English US, and can't use Cortana. I'm on build 10166.