The meetup has been rescheduled from Thursday, March 25th to Wednesday, March 31st due to the speaker's unavailability. The event will take place at Twitter HQ in San Francisco, starting with pizza at 6:30pm and featuring a Neo4j presentation at 7pm, followed by beer, discussions, and code sharing. Interested individuals are invited to register and bring their laptops to learn more about graph databases and explore the possibilities of using graph technologies for their applications.