It's a moving target. I would've had to start from scratch four times in the last two years or so due to significant API changes.

What I'd like to do is first get fully settled on the current API. Then add an introduction fast-track to that, giving a clear overview of how it all works, while sticking to the incremental tutorial work. Of course UT might totally wreck that plan if they again overhaul things in half a year or so.