If you step back and take a holistic look, I think any reasonable person would say Android is innovating at a pretty fast pace and getting it to users.

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.

We need to bring Android and Chrome to every screen that matters for users, which is why we focused on phone, wearables, car, television, laptops, and even your workplace.

We do have business relationships; we do licensing relationships, and people want to use Google services on top of Android. But in theory, you can use Android without Google.

We have seen a lot of interest from Chinese developers on Google Play because the extent to which Android is used. If we can figure out a model by which we can serve those users, it would be a privilege to do so. So I don't think of China as a black hole.

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 run Android in a very open way and work closely with all partners. We work with Samsung, and I spend a lot of time with them. But we've always supported other partners.

Android phones in China are more 'Android open source' rather than Android in the way we are all used to here. So a lot of phones don't have Google Play, etc.