Just saw that zenrin has issued the 2007 nav update (my apologies if there was already a thread on this - I didn't see one) It's at http://www.zenrin.com/infiniti/DVD7/

It looks like it adds more turn by turn coverage in rural areas - has anyone installed it? At $190, I doubt I will bother as I haven't had any trouble with map data in my area or on trips.

 

This actually does not cover '07 G sedan. Hard Disk Update will be 8.1.

Bottom of this page:

http://www.zenrin.com/infinitiSystem.asp

HDD(Hard Disk Drive) Version 8.1 will be available in December 2007.

 

right you are - don't know how I missed that...