If you have the new iPad Air, you know what a great device it is, from a solid and diverse app ecosystem and fast performance to a physical design that gets just about everything right.

But there are two things that can make the iPad Air even more useful–a protective case and an external keyboard. …

Compelling applications on mobile devices, spearheaded by the Apple iPhone, iPod Touch, and iPad, are introducing a new generation of people to computing technology as well as giving everyone access to innovative ways of interacting with applications, primarily with touch screens, GPS, and …

On a recent trip to South Carolina, where it’s warm in October, I spied a small lizard creeping around on the second floor of an apartment building. The lizard watched something from his perch behind a rafter, though I’m not sure what had captured his attention. His gaze was so intent that I don’t …