Here are my slides from the mighty meetup last night as a PDF. Keep an eye on http://twitter.com/#!/search/%23mightymeetup for updates on the other speakers and also on http://www.deerdigital.com/mighty/ for videos and such.
Please note that the demo probably won't work today – but you can grab the server code from https://github.com/stevenmilne/facewall and the client code from the link in the pdf.
Steven Milne 