My downtime tends to resemble my uptime. Weekends are workdays, but toned down. Over the whole weekend, I may have five meetings, as opposed to six on a weekday. I used to play piano for 30 minutes at night, but I had to pull that out of my schedule. I don't have time for nonwork stuff.

You can keep 'consumer' DNA at the center of your product. That will always mean that adoption is easier.

I don't use many apps. I use naps.

All we're really doing is repeating technologies that were tried 10, 20, 30 years ago... it's just that it was too expensive, too unusable, and we didn't have the enabling technologies to make it possible.

Listen to your customers, but don't always build exactly what they're telling you. This is a really key distinction around building enterprise software.

Always look for these changing technology factors- any market that has a significant change in the underlying raw materials ...or enabling factors, is an environment that is about to change in a very significant way.

I believe there's plenty of market for each; we're talking about an ecosystem that is going to support billions of devices, so a competitive landscape is good for consumers, developers, and the platforms alike. Apple brings a smooth elegance to its devices and platform, with the best marketplace experience to boot. Google brings a higher volume of devices as well as a more diverse ecosystem to interact with. The real story here is that Microsoft is nowhere to be seen, ending a two-decade monopoly and creating biggest opportunity for software startups probably ever.