If you're a WordPress developer, come join us for a few hours of hacking fun. This is your chance to work on some interesting plugins with the developers who write and maintain them -- or bring your own plugin project to share and hack on. All that's needed is a WordPress development environment and an interest in plugin development.
At this meetup you're free to spend time working on any plugin you want, but we'll have several plugin devs on-hand to help get you on board and contributing to their projects. For example, the esteemed Ben Lobaugh will be around to help you contribute to Automattic's Jetpack plugin (http://jetpack.me/). We'll have more pre-fab opportunities too -- or bring your own plugin and recruit some devs to help you with it (if you are brining a project to share, it will help if it's already versioned on github for quick collaboration.)
So -- join us! Drink coffee! Write some code! Meet some new people! Get involved in a new project! (What's the worst thing that could happen?)