Bryan, in Kent’s official announcement post, a few posts up from here, Kent mentioned the following:
“Sign up for a Google account. Remember that we’re utilizing Google Drive to sync all of our project files together. You will need a Google account access the project files. This can be a burner account that you only use for this project.
Once you have your google account, please email this message from your Gmail to kent@cgcookie.com:
Subject: I’ve drunk the Google Koolaid
Message: [CGC username] reporting for duty. I’m ready to access the project files and receive commenter access to Collab google docs”
I recommend you reading his post.
Once you have send that email, you ll get your confirmation mail very soon.
Greetings!