The iPad is still new—the first product of its type, with no significant competition until about a year after it was introduced. Apple used the breathing room to ship its second version, the iPad 2, and it’s been a huge hit. The iPad occupies a unique position: It’s the easiest way to perform most computing tasks; it’s the most flexible and powerful entertainment and education device available; and, it’s a large-screen device that’s almost as easy to carry around as a PDA or smartphone.

The iPad is a big success. Children and older people particularly love its ease of use; everyone in between likes how easy it is to carry and how fast it is to get started. Even today, try pulling out an iPad—either the original, thicker device, ...

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