Mele Sax-Barnett will be hosting the OpenStreetMap Editathon PDX meetup at Urban Airship this Saturday (the 19th). Details on Calagator: http://calagator.org/events/1250464914
The large room downstairs is reserved for most of the day (from 10AM - 5PM), so feel free to come and go as you please. There will be an Intro for beginners around noon, and some suggested tasks will be provided.
Food and beverage sponsorships are welcomed. Otherwise, please plan on bringing your own or taking a break to stop by one of the various food spots nearby.