This will be a chance to understand some of the details of how MongoDB works across multiple servers, and, more interestingly, how your language driver deals with this so that developers using the drivers don't need to worry about the details.
The presentation will be a video of a talk from MongoDB World (New York), but I will also be on hand to answer questions on the topic.
Free beer (and soft drinks) will be provided!
Mostly this will be a chance to meet other people who are interested in MongoDB, and there will be a variety of levels - from beginners to developers who are running it in production. Expect discussion amongst all attendees, and come with any questions you might have.