From here:

There were some eye-opening moments during the talk, like when Zuckerberg addressed the issue of Beacon, Facebook's advertising platform that launched to much controversy when media outlets decried it as an invasion of privacy. "We probably got a little ahead of ourselves," Zuckerberg admitted.

He talked about Yahoo's bid for Facebook, confirming publicly for the first time the $1 billion offer price. Zuckerberg also touched on Microsoft's investment in his company and fielded questions about the site's application platform.

Zuckerberg largely stuck to the same script throughout the interview, repeating the same phrases multiple times and falling back on platitudes -- often to comical effect.