dario99gst,
When I was introduced to the Passport 9500ci at CES 2008 by Escort, my understanding was that the anti-falsing capability is basically an automated form of the
Passport 9500i's manual lock-out feature using the GPS capabilities of the system.
Basically what it amounts to is when you approach a known stationery source of radar (like an X or K-band door opener or drone) several times in the course of your travels, the
Passport 9500ci will auto-mute (eg. lockout) that particular radar band. In other words, it's my understanding that the
Passport 9500ci essentially creates a known false "map", automatically.
Sounds like a promising use of GPS functionality, if you ask me, whether this capability (along with a stealth operation and installation) is worth the "extra" $500 will ultimately be up to you.
Having such a unit installed in an upper-level automobile (their likely target audience), I believe will be desired by many...I think there's a certain cache to having a remote installed radar detector in a vehicle.
Will it help with deterring would-be floggers trying to get a "free-ride" off your radar detector?
Likely.
Veil Guy