* Example: Amongst mobile phones, digital music players, and many other computers that we don't think of as computers, tablets have become popular. Tablets have been around a long time, the idea has been around for decades, and there have been many effective tablets in this decade. However it didn't gain popularity until people started looking at them in a new way (a new class of device) different from newbooks or laptops. That is what the iPad and the Apple iOS accomplished. It was a shift in perception accomplished through a new user interface that was much more natural to users that had previously existed.

** http://en.wikipedia.org/wiki/Tablet_computer

* Video that got me interested in the subject: THE INTELLIGENCE REVOLUTION - Visions Of The Future - BBC

* http://en.wikipedia.org/wiki/Ubiquitous_computing

* http://en.wikipedia.org/wiki/Ambient_intelligence

* Some Computer Science Issues In Ubiquitous Computing