GPS navigation became available to the masses back in 1996, when the current President issued a policy directive. Just a little bit of history.
Google Maps has taken another step forward in competing with the traditional in-car GPS companies out there, adding real-time traffic rerouting. Although still in beta (as many of Google’s projects seem be) it looks to be very proficient, using multiple sources to calculate traffic loads and find the best route. I personally really love that they are moving forward with Google maps features involving navigation. I always use it when I take trips, whether I need it or not. So obviously this real-time traffic rerouting will just make thing easier.
I suggest getting it HERE or just update your Google maps in the Android market. Check it out, give it a try, and let us know what you think!