Nokia customer service and related FAQs stated that N900 will have Ovi Maps turn-by-turn navigation and also that Ovi Suite and Services were being discussed with the Maemo team to implement support for N900. I also asked about Ovi Maps on Ovi official blog and a Nokia employee confirmed that they are working on it, here is the link:

http://blog.ovi.com/2010/03/02/new-p...bile/#comments

I was pessimistic and worried about N900 future, even being accused of spreading FUD. Now I chilled out a bit and I am hoping that Nokia keeps its word. @qgil already mentioned a lot of times that there will be more information about N900 future plans when both PR1.2 and Harmattan Alpha SDK are released (and both probably by the end of this month), so let's wait for it....

Maybe the focus on Meego for Ovi Services, Ovi Maps and other enhancements means that Nokia intend to support Meego on N900 but won't tell owners right now due to business strategy, technical difficulties or whatever other reasons, we will have to wait... Just keep one thing in mind, Nokia isn't a novice company who has no experience on the mobile market, and Meego will run in competitor hardware as well, so I am SURE that Nokia management is aware they will loose loyal customers if they just let N900 on their own, and most of them are early adopters and thus have influence on average users opinion.