Railsrumble.com (http://railsrumble.com/) has all the details for this 48 hour hackfest.
[masked] person teams from around the world will be hacking on Rails or Rack apps
Competing against each other for glory.
from Saturday 12:00 AM UTC to Sunday 11:59 PM UTC
that is from Friday 8:00 PM EST to Sunday 8:00 PM EST
If you in NYC and have registered for the Rumble we are hosting some space away from the distractions and comforts of home.