Here are videos from the November meetup at Salesforce: http://goo.gl/CaGt5
If you were in attendance, you may recall that Chris' talk was a a bit longer. Due to microphone issues as well as Salesforce privacy concerns, we weren't able to show his talk in its entirety, but our videographer did a swell job of making sure key points weren't missed. Thanks again to Chris and Eran for two great presentations!
Also, please send me your lightning talk abstracts if you're interested in presenting at the next meetup! :-)