All of the big moneymakers' apps are built on the older stuff, so I figure when it breaks, it gets a bit more love.
The documentation is still shoddy, the Bing-powered documentation search is abysmal, and when things don't work I don't understand why. I'd have happily paid a few hundred dollars to be part of the developer program and have a contact over there, but they killed that. Ah well.
Part of their new 'commitment' to developers (Facebook apparently created an internal Games team several months ago) is a stated paradigm shift towards more and better documentation, but it seems so at odds with the way things are currently done that I'm pretty skeptical.
It does seem as if someone over there is aware that the current situation is pretty awful, at least enough to say "we're working on it".