Brian Merchant has the backstory on the iPhone's creation in his new book, "The One Device: The Secret History of the iPhone"
Sam Weiner and Daniel Kibblesmith on a future with screens all around us.
A New York City start-up called Tactonic Technologies has revolutionized the computer touch sensor, making them tough enough and cheap enough to turn an entire floor, maybe an entire gym or theme park into a surface that senses footsteps.
These are not the droids you are looking for.
