I don't know if I'd call it every article yet, but it seems to be getting more common. What I think makes this a strange thing to harp on is that, while you can

I don't know if I'd call it every article yet, but it seems to be getting more common. What I think makes this a strange thing to harp on is that, while you can make the argument that Android is getting less open, it's still way more open than any of the other major mobile OSes. Okay, Android isn't a perfect bastion of OSS, but what can you do with iOS without Apple's permission? IIRC, you can't even write apps in their own language and IDE on their hardware to use on your Apple devices without buying a membership to their developer program. Don't even try to put it on non-Apple hardware. It's at least possible for OEMs to install Windows Phone on their hardware, and I'm not sure what development is like there, but there sure isn't anything remotely free or open-source about it.