Of the speakers of this event, Diane Greene spoke at Startup School this past year. Here's the video of her: https://www.youtube.com/watch?v=zSEeFxq2X_c

Jessica Livingston gave a talk in 2012 (https://www.youtube.com/watch?v=KQJ6zsNCA-4), and interviewed Ron Conway in 2013 (https://www.youtube.com/watch?v=7bm-Xj2jMCk). I'm sure she's given other Startup School talks, but I can't find any right now.

They're good videos, whether or not you can go to this conference.