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.

Ford shared this vision. We are inviting more players to join in.

When you take a look at the transition from server software to Azure, what's going on in terms of cloud infrastructure, the company is absolutely the No. 1 company serving enterprise backbone needs, which is fantastic. It's making the migration to cloud. We started a good thing with Azure, and the company has made well more than two years of progress in terms of being able to compete with the right cost profile, margin structure, and innovation versus Amazon.

The company [Microsoft] really has to chart a direction in mobile devices. Because if you're going to be mobile-first, cloud-first you really do need to have a sense of what you're doing in mobile devices. I had put the company on a path. The board as I was leaving took the company on a path by buying Nokia, they kind of went ahead with that after I told them I was going to go. The company, between me and the board, had taken that sort of view. Satya, he's certainly changed that. He needs to have a clear path forward. But I'm sure he'll get there.

We'll get a chance to go through this [Apple versus Microsoft debate] again in phones and music players. There's no chance that the iPhone is going to get any significant market share. No chance. It's a $500 subsidized item. They may make a lot of money. But if you actually take a look at the 1.3 billion phones that get sold, I'd prefer to have our software in 60% or 70% or 80% of them, than I would to have 2% or 3%, which is what Apple might get.

If you look at companies with upside potential, Twitter's right there. They've established a brand in a world where it's extremely difficult to establish a brand. It's a global brand, people recognize it, people want to let you know what their Twitter handles are, etc.

Not only because the product wasn't a great product, but remember it took us five or six years to ship it. Then we had to sort of fix it. That was what I might call Windows 7.