The Wall Street Journal has a good write-up of his speech here, and a video of the full speech is available here. I think Gates' idea of "creative capitalism" deserves a more in depth look, especially the thoughts about harnessing the best of business, government and charities to tackle the enormous problems of healthcare and poverty.
When so much of the news in healthcare these days is about corporate apathy and malfeasance, it is wonderful to hear someone who has been treated so well by capitalism speak up for people who have not.
It is also wonderful to see the Davos Question so popular on YouTube.
Here are some highlights from the Science forum at Davos.