I sure hope they come up with an update for the RB4. I have an 04. 5 with the RB4 and have not been happy from day one. There isn't much info on Canada especially western Canada and nothing what so ever on Alsaka of course they have Hawaii info, DUH. I have used it up and down the west coast and around AZ, It is a problem to plan a long trip. I found you have to do it in sections as it is not friendly with picking your own route out. I wanted to go from Sacramento to Yuma and it wants me to go by way of LA. I also wanted to go from Yuma to Hemet Calif and it wanted me to go so San Diego first about 60 miles father than directly by way of Indio. I hope the price is not $300 because to put that kind of dollar value on a band aid for the program is dumb. For $750 you can get a Garmin 2610 and have a good moving map display and be happy. This has been a sore spot with me since I got the truck. DC blew it with this. They should supply it for free for shaft we got. When you are out in the Tulles beyond Radio reception you cannot use the CD player while navigating, that was dumb also. .