I think most of the techies in the crowd were unimpressed by Biz Stone, but I enjoyed his presentation. He really shared the heart of creativity and imagination in producing not only a good product, but also in providing social change.
In education, we are hearing more and more about how our students need to do more project-based learning and to contribute to solving real-world problems. This session was a great speech for motivating people to share in philanthropy and engage in their world to solve problems.
As for the young start-ups, he made sure to relay to them to spend time sharing. He noted how when you fail in business but keep providing for others, you receive such benefit. I highly suggest a read through the tweets on this presentation. It was a really uplifting message.