The slides for my UXCamp London talk are now available on Slideshare (with tweaked font).
The presentation obviously doesn't include the Google Wave demo. I will update the presentation shortly (add Wave screenshots). Watch out for the video on Vimeo (online tomorrow).
http://www.slideshare.net/johannakollmann/back-to-the-roots-if-email-is-the-past-is-google-wave-the-future