The wiki is slowly coming together. One of the things I want to do there is build up a set of "How To" articles that explain how to do tasks that are small but may be non-obvious, such as how to point a sprite at a target.
So, if you run into anything you might like to do that is not obvious from the docs, please post about it here! Or consider writing such an article yourself, if you've already figured it out. 🙂
