David Pogue, author of "Apple: The First 50 Years," talks with Apple's co-founder Steve Wozniak, CEO Tim Cook, and others about the vision of Steve Jobs, and how the company's products and services have reshaped life, technology and culture in the 21st century. At this moment, 2.5 billion people – a population bigger than China's – own Apple products. But it all started on a sidewalk near Cupertino, California, where, in 1971, engineering prodigy Steve Wozniak met a charismatic, rebellious high-schooler nam... [5546 chars]