The slides for my Agile2009 talk "The importance of identity and vision to UX designers on agile projects" are now available on Slideshare.
http://www.slideshare.net/johannakollmann/the-importance-of-identity-and-vision-to-ux-designers-on-agile-projects

Notes, which contain a bit more information on what I was talking about, are on Slideshare, too.
Video and conference summary to follow shortly.