How we take GPS for granted. Besides mobile phones, It’s hard to think of a recent piece f technology that has been so thoroughly embraced by the pubic. But the way it came about and was handed down to pubic use pretty interesting. The glow of a GPS screen can be seen on just about every dashboard you ass on the road these days. Not that long ago, GPS was the exclusive domain of top secret government and military operatives. They have now become so commonplace that they are changing the way America drives. They also now have given us a new high-tech acronym to learn: PND, or personal navigation…