The Nokia N9 certainly made a great first impression and a lot of people are eager to get their hands on it. That's why Nokia put up a webpage, that should help you find out when the device becomes available in your area. Interestingly though, the Finns seems to have no plans of releasing the N9 in some of the biggest markets in the world. Some of the countries, which will surprisingly miss on the MeeGo smartphone are USA, UK, France, Germany, Spain, Italy, Canada etc.
Incidentally those countries are the ones rumored to be in the first wave to get the Nokia first WP7-powered device - the Sea Ray. It seems that Nokia doesn't want its two flagships competing against each other.
You can check out this link to see if your country will be getting some MeeGo love from Nokia or not. And don't forget that even if it's not you can always import the handset from elsewhere (though that will probably result in a price increase).
Stay tuned, we'll update accordingly if there are any new additions to the list.