Off the top of my head, and based on assorted discussions with local geeks:

* Concern over the possible direction of JavaScript such that is gets burdened with a Java-esque type system and looses some of its dynamic sweetness

* A discussion on various ways to hook into core objects to extend behavior

* Exploration of non-browser uses for JavaScript

* Current tools and techniques for testing

* Comparison of various JavaScript interpreters

* Learning how to stop writing C or Java in JavaScript; i.e. understanding dynamic, protoype-based programming