Sun Summit on 21st Century Eco-Responsibility" hosted by Mike Krasny of KQED fame and Sun Microsystems. The event lasted a bit over an hour, out of which there was about 10 minutes of Sun specific talk, mostly about the new Sun UltraSparc T1 processor (aka Niagara). At first, I figured this even may be a Sun marketing event, but after viewing it, I'm glad to say it is much more than that.
The replay is available at:
http://www.sun.com/aboutsun/environment/watch.jsp
