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The current version (released to dealers on Oct. 7, 2003) is ver03.1. There's another thread about this here.
I'm assuming this means the RX has the third-generation Nav. Having read about the Nav system in the '04 LS, which I'm guessing must be ver 4, I can tell you that the RX doesn't have all those features (like the ability to call a POI directly from the Nav, or a listing of the businesses in a building on the map).
That being said, the third-generation nav in the RX is SWEET. Very accurate, and the voice navigation handles giving directions through the most convoluted interchanges with ease.
Last edited by pdxmark2; Nov 11, 2003 at 10:14 AM.
My brother just purchased the new ES 330 as well and it says that it is a generation 4 but it does not have the blue-tooth option like the LS430 which has generation 4 so I dont see how he can use the call feature