I've got lots of e-mails already asking to join. And everyone who's e-mailed me so far (8pm UK tiem) are definitely in. I'll sort out invitations and send them out in the next few days so don't panic if you don't get a reply yet. I'm overwhelmed that so many want to join.
Got about 15 so far. So if you want to join be quick as it's filling up quickly.