The answer to your question is...
...N97 owners will once again be screwed by Nokia. Oh wait, that's exactly what happened - with no release of Ovi Maps w/free walk and drive nav for us.
Thanks to the existing failure that is Ovi Maps (crashes my phone each and every time on opening), I get stuck using Google Maps until they get off their backside.
N97 version will release on 28th Jan 2010
We have been provided with a release date for the new OVI MAps with free premium services and it is . . . . 28th January 2010.
There were a number of niggles that needed to be sorted out. From what is being said the next FW update is pretty iminent too.
@Michael H: Check yuor GPS Server in the Location app on your phone. If it isn't set to supl.nokia.com change it to this and see how you get on.