The article title inspired me more than the body could. LORAN. c'mon.
Would have been more interesting to read about real innovation - such as them starting a competition for a navigation aid without any man-made base stations altogether.
You can use the natural base stations, such as sun, moon, stars, magnetic and gravitational anomalies, and terrain of course (given that you are on or above ground). Sensors for all of this plus a decent map base and a processing device should make for a nice GPS alternative that could be very resilient and independent. The ultimate in disaster preparedness, so to speak. You could even use it in nuclear winter (given of course that the device itself survived the NEMP).
Anyone feels like starting a company together? I'd be in!