For all those after more information about the Mega, we now have our own section on the Groundspeak Forums. The link is as follows
Uk Mega 2013 Forum
We've recently made an announcement about the camping, full details can be found on the forum listed above and also on our own website www.mega2013.org.uk. There'll be plenty more announcements soon including the all important side events!
Please get in touch with any feedback and suggestions. After all we are doing this for the geocaching community and without you there would be no point having a Mega.