DjangoCon US is the main opportunity for djangonauts to come together in the United States. It will consist of two tracks of talks over three days, and will also provide for open sessions, lightning talks, and a development sprint after the conference.
DjangoCon US provides a critical opportunity for the community members to socialize, share ideas, work together, and plan for continued success.
The Djangocon sprints are a time where people who normally live around the world and collaborate over irc and mailing lists, come to one place to work together in person. While most people will be working on the Django code base, lots of others will be working on related projects (Pinax, South, Armstrong, etc) or they'll be working on tasks to support Django as a project (documentation, ticket triage, promotion). Regardless of your experience level the sprints are a great opportunity to collaborate, learn, and give something back to the community.