Thanks for the answers.

My question:
Will Tizen hit the Nokia N9? Of course, there will be no possibility of getting an official update from Nokia, but it should be possible to get it on the N9, shouldn't it?
Yes, there will be a few updates for the N9, but I'm afraid there won't be that much apps because MeeGo is already dead. And yes: There are repositories but you'll never get apps like "What's App" by it...
So, before I get an N9, let me hear your opinion about it!