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The smartphone revolution is under-hyped, more people have access to phones than access to running water. We've never had anything like this before since the beginning of the planet.

The uptake on mobile phones in Africa is phenomenal.

Some countries have more water than others - some can afford to use clean water to flush their poop away, and some can't.

I don't know a single person who is not immersed in the digital universe. Even people who are strongly anti-technology are probably voicing that view on a Web site somewhere. Third-world villagers without electricity have cellphones.

More than a billion people lack adequate access to clean water.

I think most people in the developed world would admit to carrying some sort of handheld device, whether it's a laptop or a cell phone, at all times.

Mobiles mean people know where you are.

In the next 10 years, I expect at least five billion people worldwide to own smartphones, giving every individual with such a phone instant access to the full power of the Internet, every moment of every day.

Inexpensive phones and pay-as-you go services are already spreading mobile phone technology to many parts of that world that never had a wired infrastructure.

There's over a billion people on this planet that don't have access to clean drinking water.