I enjoyed the talk and admired his good use of clarity when talking about the problems. However, the counter to clarity is that it might be a bit too clean for the real world, and that was apparent when answering the questions about copyright at the end.
I realize that pg wasn't particularly prepared to be dealing with questions unrelated to the talk, but it was the first time I've seen him not easily handle questions with grace. His responses came off as glib and eventually he had to qualify and edit his previous statements to provide somewhat of a satisfactory response.
It's easy to over-believe ideas that are put forth with clarity and match your natural disposition towards clean logic and historical examples. Though pg has intriguing and useful perspectives, I encourage people to study these problems far more in-depth before forming a personal opinion.
On a somewhat related note, it was alarming that pg didn't have a clear moral position when asked about his decision-making process. It's fine for the young and uninfluential to "wing it" when it comes to moral decision-making, but seems irresponsible for someone with his level of power in Silicon Valley.