The tool that's most associated with the recent progress against malaria is the long-lasting bed net. Bed nets are a fantastic innovation. But we can do even better. We can invent new ways to control the mosquitoes that carry the malaria parasite.

Software innovation, like almost every other kind of innovation, requires the ability to collaborate and share ideas with other people, and to sit down and talk with customers and get their feedback and understand their needs.

Innovation is a good thing. The human condition - put aside bioterrorism and a few footnotes - is improving because of innovation.

Microsoft is not about greed. It's about innovation and fairness.

The point is that when we focus on all three things at once-technology, policies, and markets-we can encourage innovation, spark new companies, and get new products into the market fast.

I'm an investor in a number of biotech companies, partly because of my incredible enthusiasm for the great innovations they will bring.