Doing some online searching, I've found some radar detectors with GPS speed trap detection features. However, almost all of them seem to be for the UK, or Japan. Do these detectors work (and are they legal) in the US? If not, is anything like that available for the US?
I was just about to get a Bel RX65 Pro (barely over the Escort X50 due to its Ku detection capabilities -- planning for the future), but then I came across the GPS/radar detector combos. It would be nice to know when I'm entering a known speed trap, so even if I'm not getting any active alerts I know to be extra watchful.
Or, should I just forget about the GPS speed trap functionality?