The talks were largely uninteresting. I got far more out of the meet & greets which happened the night before.
Ultimately I voted with my feet and left early.
PS the crowding is also why I completely failed at meeting anyone from Friday night - sorry Lynn from Google (whose last name I can't remember :-/), Harry Yu and Paul Biggar.
Set up a bunch of stations, have a bank style line, and when a station frees up, someone goes to it. Or just do what Fry's does and have someone directing you to the next available station. People come in the front, enter the line, hit a station, and depart out the side door. This has the added side-effect of keeping people from coming IN through that door, which is what happened around 11:40 when people all crowded in because we all thought something was starting.
I definitely did not go to join an impromptu mosh pit, but that's what we had for a while there.
I met a couple people, but wish there was more time between talks to chat with people. Perhaps if there was designated signposts/corners-of-the-courtyard for random topics, like "Funding" or "Solo Founders" or "Web" or "Mobile", etc... then it would have been easier to seek out like-minded folks.
I agree with previous posters about poor logistics. I'm not sure why they didn't just let us into the auditorium before 11:58am. That would have greatly reduced the congestion in the lobby area. I was worried there'd be a stampede :-) to see Zuck.
I was too tired (old) to drive up to SF afterward. Too bad Box (or some Palo Alto company) didn't host the party, so we could stay down near the campus afterward. :-) I'd have paid to go to the party if it was just on the Stanford campus (at the student union or whatever).