Although I don't have a technical session this year, I will be up at JavaOne tomorrow, presenting "Identity and Web Services: A Marriage Made in Heaven?" with my good friend, the Wizard of IdM, Don Bowen, at 1:05pm in the Pavilion Theater. We'll spend about 20 minutes exploring the different ways that identity and web services impact each other. If you've heard Don on the Sun IdM podcasts, you know this'll be fun
UPDATE - here are the slides [PDF].