For anyone who has ever been truly, deeply lost, the system is a godsend. But automakers have been slow to install it. Some companies, such as GM, jack into the GPS constellation indirectly through the OnStar system, which connects drivers to live operators over a cellular network. But car-based GPS systems are still pretty rare in the majority of new auto designs. The techno-lethargy is due mostly to the fact that until recently, in-car GPS was a little rusty: the complex software that translated GPS signals to onscreen maps sometimes got drivers more lost than they already were. But a new series of GPS mapping units, beefed up with friendly interfaces, are finally coming on the market, delivering on the promise that in a GPS-enabled world, we'll never be lost again.MORE>>
What's Taking So Long With In-Dash Car Navigation Systems?
It's been something of a surprise to see how long it has taken car manufacturers to embrace the Global Positioning System as a standard for in-car navigation. GPS, which relies on a constellation of orbiting satellites to provide
real-time positioning data, was a Cold War military innovation
that's been available to civilians for about a decade. It's killer
technology literally. Designed to deliver cruise missiles
within three feet of their target ("We can put a Tomahawk
through a window," is what the Air Force used to brag), it
can also be used to locate your Toyota within a yard or so
of where it really is.