The common desktop interface of personal computing-clicking links, file names, and tabs to navigate everything from the Web to Microsoft Word-works fine on your PC but not on the tiny screens of handheld devices, which rely on cumbersome adaptations like drop-down menus and scrolling. Now, the first interface that completely replaces these methods with the simpler method of zooming-alternating levels of magnification-is headed to the handheld market.

Select from the choices above to read the entire article.