iPad Air Review by Walt Mossberg - WSJ.com

Lead paragraphs of Walt Mossberg's iPad Air review

"One reason for the phenomenal success of the iPad has been Apple's ability to pack speed and versatility into a thin, light body with long battery life. It doesn't do everything a laptop does, but for many common scenarios, it has replaced the laptop as its owners' go-to device. That's why the company has sold 170 million iPads in just 3½ years.
Now, Apple is raising the bar. On Friday, it plans to start selling its fifth-generation full-size model, called the iPad Air, and this one significantly extends the iPad's advantages, at the same $499 base price of its predecessor. In a feat of design and engineering, Apple has slashed the iPad's weight by 28%, made it 20% thinner and 9% narrower, while increasing its speed and retaining the brilliant, 9.7-inch Retina display."

iPad Air Review by Walt Mossberg - WSJ.com