PC Magazine reviews Garmin nüvi 660 and concludes with very good editor rating of 4.5 out of 5 that road tests of the nüvi 660 yielded no surprises. Like all Garmin products, the nüvi 660 is based on Navteq mapping data. The test routes generated on it were identical to those from other Garmin products and very accurate. The device’s vehicle-routing profiles include Car/Motorcycle, Pedestrian, Bicycle, Truck, Bus, Emergency, and Taxi. Voice prompts were given at appropriate intervals. Garmin’s text-to-speech converter announced street names accurately. One disappointment, though, is that the 660 doesn’t support multisegment routing. Garmin’s nüvi 660 is now the leader of the high-end shirt-pocket GPS market. It’s pricey, but if you want the most fully featured yet tiny navigation device with a 4.3-inch screen, the nüvi 660 is your only choice.