I have NAV in my 06 EX-V6, and I love it. What I hate is I didn't get it in my '05 Pilot. Well, I just picked up a Garmin nüvi 360, and it's every bit as good as my Honda Nav. Compared to what I paid for the onboard NAV, this was quite a bargain. Works great in the Pilot, and can fit in my shirt pocket. These are $699 at Amazon now.

Just FYI if you are considering a GPS system. But hey, I still lofe my Honda NAV too

http://www.garmin.com/products/nuvi360/