It's a very long story, including how N950 was worst thing that could happen to Maemo development "world" (see current problems with once-respectable maintainers, that got N950 virus and disappeared without any trace), why N9 isn't worth considering as successor of N900, etc. Of course all of this apply to Harmattan-powered toys, not Mer.

It's definitely off-topic here, but if You're interested why sane Maemo users hate what Nokia did with Meego/Harmattan/N9(50) etc, just search forum.

/Estel