From the official conference description:
Much of the data in a database is about people. Identity 2.0 technologies will lower the friction for people to provide and easily move data about themselves online.
This fast paced keynote will offer a background on Identity 2.0, discuss current roadblocks and future opportunities, and explore the potential impacts these will have on databases.
I have already blogged about this keynote at http://www.sheeri.org/liveblogging-who-is-the-dick-on-my-site/
Colin Charles also blogged about it
Do not miss this keynote! See it on youtube.