As an armchair disease detective, you don't have to bother with mundane tasks, like culturing fluorescent bacteria or interviewing the ill. Centers for Disease Control and Prevention hide caption

itoggle caption Centers for Disease Control and Prevention

A Nordstrom salesperson shows a customer an online selection of shoes on an in-store iPad. Like some other retailers, Nordstrom is using mobile devices to make on-the-spot sales and check companywide product inventory instantly. Courtesy of Nordstrom hide caption

itoggle caption Courtesy of Nordstrom

The new iPad Mini is displayed after its unveiling at an Apple event in San Jose, Calif., on Tuesday. Kevork Djansezian/Getty Images hide caption

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Customers talk with Apple employees, in blue, inside a San Francisco Apple store on Friday, the first day of the launch of the new iPad. Paul Sakuma/AP hide caption

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Apple CEO Steve Jobs describes the company's new iPad 2 on stage at the Yerba Buena Center for the Arts in San Francisco. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images