
The N900 is the Latest Geeks Flag-ship device from Nokia, the Device Started with Maemo 5 and released to the markets on Early 2010, then the Device Got the MeeGo 1.1 Update on October,2010. It looks like Nokia also want to get the MeeGo 1.2 on this Device but this time it will be a Full integrated Update with Many New Features and Improvements from the Previous Update.
It look like Nokia want to make the MeeGo OS the Main Operating System for The N900 as Jukka Eklund, MeeGo developer edition product manager, said about the Nokia N900:

"Basic handset UX should work, phone calls, SMS, web browsing. So we are concentrating on a few selected features and polish those to be 'perfect'. It might mean that we leave out some things in MeeGo 1.2 trunk for this edition, but that is not the default intention. We are doing this fully in the open, and I hope this is an interesting project where we all in the community work towards the same goal: have a great MeeGo edition in the N900
http://www.youmobile.org/blogs/entry/N900-to-Get-MeeGo-1-2-Update-in-28-April-Officially-Confirmed-by-Nokia