Wearable computers closer to combat use.

• Author: Parsons, Dan
• Position: Inside Science + Technology

Much like the iPod beginning around 2002, Google Glass is slowly becoming a common modem fashion accessory.

The device immediately splashed across the Internet and television, then randomly showed up on subways and in coffee shops. Soon rumors circulated that the private sector had solved the wearable-computer conundrum the U.S. military has tackled for years.

Then, in February, the commander of all Navy ships in the Pacific Ocean took to a stage in San Diego with the wearable computer strapped to his head.

"I think there is enormous potential for something like this wearable optical device like I had on today, where information is with me, it's there," Adm. Harry Harris said. "Not only can I do something as simple as read a speech from it, but you can take pictures, video. ... I recognize the potential in things like that."

The Army in particular has long sought the sort of all-in-one wearable computer that Google has achieved with Glass, but after many stalled efforts it has failed to develop a feasible design. Still, some officials are wary of simply co-opting commercial technology for military purposes.

Reports indicate the Army is considering including Glass in its 2014 round of Network Integrations Evaluations at Fort Bliss, Texas, and Aberdeen Proving Ground, Md.

Special operations acquisition officials have warned against presuming technologies like Glass can solve the military's tactical communications needs. Industry has taken the hint and begun to design heads-up display computers specifically for tactical applications.

Take BAE Systems' Q-Warrior, which the company has been shopping around as a Google Glass for special operators in the field. Based on helmet-mounted displays worn by helicopter pilots and door gunners, the system was designed for use by the individual dismounted soldier. It allows for identification of hostile and friendly forces and small-unit coordination without obstructing the wearer's view.

By projecting information, including troop positions, maps and alerts directly onto the environment, BAE hopes the device will minimize or even eliminate friendly fire incidents. Like Glass, it can overlay information on the soldier's view in real time.

The system also can allow soldiers to coordinate air support, artillery fire and communication during hectic firefights without handling a separate device like a radio or smartphone.

"The biggest demand, in the short term at least, will be in roles where the early adoption...