When your location marker on Google Maps is pinging all over the place, it's usually due to temperamental GPS signal. DARPA thinks this isn't cutting it anymore, and is developing a "radically" new tech that will offer real-time position tracking -- something that'll work despite blind spots or jamming efforts. DARPA expects this will offer a huge boon to the US Military over, well, everyone else. Beyond war, the new location tech will good for some much more, and will be far more flexible than GPS. Just like how we now use that once-military network for navigation and location services, new tech is very likely drip down to muggles like us too.