SnakeDoctor said:
Can the GPS dongle that comes with Microsoft Streets and Trips 2010 take the heat it will likely be exposed to while sitting on the dash of a parked car in the sun?
I personnaly never put my dongle on the dash, but use the usb extension cable to wrap it around the front window rear center mirror. This way the dongle is not touching anything (just floating in free air and i keep the usb cord short to the mirror holding), it is near the front window (seeing the sky to maximise signal probably), only the cable is touching something not the dongle. Letting the dongle in the car like this in the summer, i never experiment any over temperature problem with it...
I cannot say that this is the best way to do it, but it works for me...