i never heard of it before but scratch is talking about it so i want too know, so please reply.
Collab Camp is a month-long virtual event on the Scratch website that invites Scratchers to form a collab and create a Scratch project together based on a theme. The theme of this Camp is interactive stories. A collab is a group of Scratchers that work together or collaborate on Scratch projects. It's a fairly new event that just launched on August 1. We held a similar event earlier this year called the Collab Challenge.
You can learn more about Collab Camp here: http://info.scratch.mit.edu/collabcamp2011