We're having two meetups in May: one in Oakland, and one in San Francisco:
Turnitin.com will show off tools and technques they've learned and created at their offices in Oakland. This includes a preview of their presentations at pgCon.
Andres will explain the new BDR and UDR replication at the Rackspace meeting space in San Francisco. Plus, Peter G. will talk about the recently-committed UPSERT.
Unfortunately, the Oakland one already has a waiting list, but get on it if you're interested in case of cancellations. And a big thank-you to Rackspace.com and Turnitin.com for sponsoring these meetups.