I don't think there is one size that fits all. I've been to too many meetings with journalists who spent the first 10 minutes of the meeting setting up iPad to look like a laptop.

From a client perspective, I really think the work Microsoft's doing with Surface, with HoloLens, with Xbox, that stuff's absolutely essential to the company's future. Because innovation in the future will either be from the cloud out to all devices, or from devices as supported by software in the cloud. I think it's important for Microsoft to participate both ways.

I meet with Satya [Nadella] what probably amounts to four or five times a year - either to brainstorm something or just as a shareholder, we'll sit down and chat. That's always quite helpful for me and hopefully him in terms of thinking things through. I still have a number of friends and colleagues who occasionally want to brainstorm or chat about something, and that's always fun.

Almost three years ago, when I retired, my wife and I were talking about our philanthropic work and how does one help give opportunity, particularly to kids growing up in very disadvantaged situations.And my initial kind of sense was, the government does that primarily, and what we should mostly do is pay our taxes. My wife said, no, I don't think that's quite right for us. We need to do more. We can do better.

Everyone likes to differentiate between business and consumers but I don't see the difference really. Most people are people. I get personal and business mail and I have one set of contacts from my life. I don't want to manage two sets. I want one view of my world.

The company I invested in is probably a leader in that area. They're a company called Second Spectrum, which happens to be based in LA but was started by two USC computer-science professors. It's filled with guys who love sports, who played sports, but really look like programmers.

We don't have a monopoly. We have market share. There's a difference.