I have attended the session with Scott Ambler. He is an amazing speaker. One of the reason I wanted to attend his session was because I have partially read his book: Refactoring Databases. And I think he touches a very important subject there. His talk yesterday was excellent. Even thought I don't really care to much about OpenUp, I wanted to hear him talking and I was not disappointed one bit.
If you have not heard about him, check out his bio on IBM website: Scott Ambler.
I will now have to bump his book to the top of my reading stack. :D