Android is one of the most open systems I've ever seen. What makes Android great is it's literally designed from the ground up to be customised in a very powerful way.

Android was built to be very, very secure.

Android was intended to be very customizable. And we welcome innovations.

One of the great things about an open system like Android is it addresses all ends of the spectrum. Getting great low-cost computing devices at scale to the developing world is especially meaningful to me.

We're excited by the success of WhatsApp on top of Android. Amazon brings services like Kindle on top of Android. It's a competitive world and a lot more complex than people realize. When you run a platform on scale, you have to make sure it's truly open. That way, not only do you do well, so do others.

There are seven billion people in the world. And I think phones are the first time most people will have access to a modern computing device. With Android, we want to enable that for people.