I was told that the new update is out for the DVD based NAV in the GS430.

1. Is this the same as used on other Lexus models?

2. Is it worth it? Are there any new features or much improved locations/streets?

3. What should be the latest year version?

I live in Orange County, CA.

Thanks.

 

I'm also interested especially how DVD can be migrate from one model to another. Will for example LS DVD work in GS or ES?