Note - this tutorial is quite a a bit out of date, so use at your own risk. It will be updated, but I'm not sure exactly when.
Version 1.2:
PDF Document
Sample code tarball (gzipped)
Change log can be found in the announcement post.
Sorry there's no HTML version. I write the document in Omni Outliner, which I love, but the HTML it produces for my document is unacceptably fugly. I'll provide it in the future if I can come up with a decent converter.
