Agreed, the event had a very cool sounding board energy due to the conversation in the back and the Twitterwall. It was a very survival of the fittest thing. I see it encouraging better presentations and really requiring people to be engaging. I tend to be a bit hard of hearing, but did not find much difficulty hearing any of the presentations if I just stood a bit closer and/or concentrated. I actually think that they could have made the halftime break a wee bit longer so that people could mingle more. There were some good conversations that stemmed from that.
I definitely think that we need to be up there next time selling ourselves. There were quite a few influential people (both monetarily and web-personality-wise) that could be very very helpful to our cause... of course, that would require one of us to actually get up in front of people and talk.
And don't run out of beer next time