Ken Segall:

Now that we’ve had a chance to sleep it off, I think we should look at the forest, not the tree. iPad isn’t a revolution in itself — it’s actually Part III of a revolution that started seven years ago. Some of its most important features came well before the hype began.

Apple started down this path with iPod. That’s when the company demonstrated its ability to combine software genius and gorgeous design — and immediately grabbed a 70% market share. iPod was technology you could fall in love with, small enough to fit in your pocket. At the start, it was all about music. Then it matured with photos, movies, podcasts, radio and TV shows.

iPhone was Part II of the revolution. Adding phone and Internet to iPod’s capabilities, the pocket device was now a full-fledged computer. It just didn’t feel like one. The spectacular advance was the multitouch screen, which gave us a whole new way to interact. Competing against a legion of high-powered villains, iPhone was an instant success — because its technology matched up so well with human behavior. Then came the App Store, which gave iPhone and iPod an advantage of monolithic proportions.

At this point, all the pieces were in place: advanced OS, multitouch screen, intuitive interface, Internet, email, music, movies and 140,000 apps. No need to think about file systems, viruses, all those ancient concerns — you could just do what you want to do. For a great many people, iPod/iPhone had become all the computer they really need, except for one thing. It was all in miniature. Cue Part III of the revolution. iPad is the life-size version of the technology that the world’s already fallen in love with. And I suspect it’s a device whose potential may be seriously underestimated.

The entire article is worth a read.