The live stream was archived on Ustream, but unfortunately, the videos are not broken up by speaker. Also, from what I can tell, the time labels are wrong (Pacific timezone rather than New York, I'm guessing).
Here's the summary page with all the videos: http://www.ustream.tv/channel/open-hard ... 011/videos
You can still find the speakers, if you can bear to watch a few ads.
Bunnie Huang at 1h, 19 min
This video ends right before lunch
Starts in the middle of Amanda Wozniak's talk
The audio appears to be screwy. James Bowman starts around 9:00, but he doesn't appear in the video until around 11:00.
Bryan Newbold starts at 7 min.
Nathan Seidle at 17 min
Mitch Altman at 29 min
Suggestion: if you watch a few speakers, copy this list and add the times of a couple speakers, and post it as a reply. When it's done, we can send it to the OH Summit folks and ask them to post it.