I have not. What I'm proposing that I'm going to do is far beyond a single article, but realistically, after I get a 'part' or two done and grasp how the rest of the document will flow and get a first full draft done that is 'publish' worthy, I may reach out to such mags just to say "you know, Python isn't the only Pi game in town" with a basic writeup or something.

Thanks for the idea though, it didn't cross my mind.