Crawling through a field in hostile territory, a soldier spots an enemy. What does he do? He might fire up his palmtop computer, pinpoint the exact GPS coordinates of the foe, and pipe the information over a satellite phone network back to headquarters.

A U.S. Army battle laboratory in Colorado is working to apply such personal tech breakthroughs to the combat zone. Select troops have already tested prototypes with the lab's Joint Expeditionary Digital Information (JEDI) program.

<  |  >