This past weekend, I drove up to San Francisco to look at a car that I wanted to purchase and needless to say I took my TT510 along for the fun and the ride . I actually finally saw the Speed limit Indicator function working, but to my surprise only in San Francisco area like when I was on the Bay Bridge and so forth. It was kinda cool to see the 2 numbers side by side and when I decides to speed it would blink in red. Either way, my TT510 performed flawlessly with the exception of downtown SF where the tall buildings are, it kinda went nuts, I think the GPS signal somehow got screwy with a bunch of tall buildings all around. But do becareful of its instructions near the downtown area, there are now some newer 1 way roads that TT didnt pickup, and yes I think we need to do some more Attraction POIs.