The U.S. military in the past would give a soldier an electronic handheld device, made at great expense specially for the battlefield, with the latest software. But translation is only one of many software applications soldiers now need. The future of "networked warfare" requires each soldier to be linked electronically to other troops as well as to weapons systems and intelligence sources. Making sense of the reams of data from satellites, drones and ground sensors cries out for a handheld device that is both versatile and easy to use. With their intuitive interfaces, Apple devices—the iPod Touch and, to a lesser extent, the iPhone—are becoming the handhelds of choice.

Using a commercial product for such a crucial military role is a break from the past. Compared with devices built to military specifications, iPods are cheap. Apple, after all, has already done the research and manufacturing without taxpayer money. The iPod Touch retails for under $230, whereas a device made specifically for the military can cost far more. (The iPhone offers more functionality than the iPod Touch, but at $600 or $700 each, is much more expensive.) Typically sheathed in protective casing, iPods have proved rugged enough for military life. And according to an Army official in Baghdad, the devices have yet to be successfully hacked. (The Pentagon won’t say how many Apple devices are deployed, and Apple Computer declined to be interviewed for this article.)

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