In the high-tech world, divergence devices have been spectacular successes. But convergence devices, for the most part, have been spectacular failures.
The first MP3 players (the Diamond Rio, for example) were flash-memory units capable of holding only 20 or 30 songs. The first iPod, on the other hand, had a hard drive and could hold thousands of songs. Now there were two types of MP3 players, a classic example of divergence at work.
The first computer was a mainframe computer, followed by the minicomputer, the desktop computer, the laptop computer, the handheld computer, the server and other specialty computers. The computer didn't converge with another device. It diverged.
When the cellphone was first introduced, it was called a "car phone" because it was too big and heavy to lug around. You might have thought it would eventually converge with the automobile. It did not. Instead it diverged and today we have many types of cellphones.
... a host of other divergence devices that have been enormously successful: the digital camera, the plasma TV, the wireless e-mail device, the personal video recorder, the GPS navigation device.
And an entertaining defense of the Apple Phone:
As comedian Ricky Gervais recently put it in one of his stand-up routines, we don't need to be able to take a piss in the washing machine because we've already got toilets. Yet, every time I pack my iPod, phone, BlackBerry and laptop into my travel bag, along with all their various chargers, I find myself wishing I had one mobile device. Call me irrational, but I'm willing to believe the iPhone might be the one.