This morning on my way to work the navigation screen caught my attention by virtue of being more colorful than usual. It turned out the 52 freeway was now displaying traffic information. Upon arriving to my office, I checked a bigger area and now all freeways in central San Diego are displaying traffic info, where before it used to have some blank patches (especially in the 805 corridor I most frequently use). Good move, navteq!

 

You are now realizing the manifestation of Real Time Traffic - "navigation screen caught my attention by virtue of being more colorful than usual".
(don't expect the colors to mean anything useful).

 

I don't know in other areas of the country, but here in SD the traffic information is pretty reliable.