I have bought a new Chrysler (august 2005) with the RB3 navigation. The RB3 is delivered with Navtech sotware from december 2003. To my surprise the dealer informed me that this is the most recent version. I do not believe and do not accept a 1,5 year old navigation software. 
Is there somebody who knows a more recent version?
I checked the database files on the CD-rom for the date.
Please let me know,
Martin from Holland