Good blog post, thanks for sharing.

I fully agree with your points about real openness, I think this “file over app philosophy” is the way to go for every self hosted app – make it possible get the data out of there.

What I did not quite understand is why using XML is slower? Why is that – are parsers just slower in general? I do not have a lot of experience with XML, but I always thought it pretty much doesn’t matter whether you send your data via JSON or XML. And how does your JSON structure solve the problem of “content heavyness”?