The RSS feed reader, for example, is in fact free software. People can change it to "scratch their itches" - at least I did.
you can replace the media player, you can write a new mail widget... Those are applications, not the OS, right? You wouldn't judge Microsoft Windows by the quality of MS Paint.)
If what Nokia achieves is still (after so many years!) the best you get on the market, they must be doing something right.