I noticed this morning that Google was displaying the home page of one of my sites as www, when I've had the www 301'd to non-www since it launched in April. And I was sure I had the preference set in GWT, but when I went to check, it said no preference. It's been non-www all along today.
But then I went and checked another site, and that one is displaying at www too - and when I checked GWT, it says that it IS set to non-www preference.
@sharkseo also seeing similar.
What's up with that?