So you will never own any phone other than the N900? That's what is means to say none.
For me Nokia's useless customer services and the usb port issue and the millions of bugs in the N900 made me decide months ago that I would never buy a Nokia phone again.
However, I started getting into the modifications you can do on the N900 and got really addicted to it. So if Nokia releases a meego phone as open as the N900 that will be my next phone. Unless someone other than Nokia releases a very open phone then I would get that instead. Would likey be less buggy and there would probably be better customer services.
If no one comes up with a very open meego device then will go for a HTC android phone. Don't think you can go wrong with that.