tl;dr We're skipping December, having lightning demos on January 5, 2012.
As noted above, we're skipping December in favor of having lightning demos in January. It's the holidays! Too many things to do and not enough time to do them all.
From the last East Bay Rails meetup ("Your First Rails App"), it's clear that most people have a project underway. I know I do, and it just needs a little more work before giving a demo. But it will be ready by January 5, 2012...
Also: a lightning demo is 5 minutes... short! Feel encouraged to show off your app.
Send me what you're presenting, I'll send out a line up mid-December.
Thanks, and see you next year, -dave