Only time will tell if these devices will live up to the hype, but throughout history, the truly revolutionary innovations are those that so fundamentally changed how we work and play that it's hard to imagine modern life without them.
A new study finds that the most voracious consumers of new media are people who own e-readers. By contrast, iPod owners – no Luddites – consume nine hours. There are a few other results in this survey that may shake some traditional wisdom: