I'm not sure if this is something new, but I haven't noticed it before. It looks like Google is now indicating when a website is mobile friendly in the results pages. The Mobile-Friendly excerpt is left out when a site is not mobile friendly.
Thanks for sharing Robin! Yes it's new, just this week.
<a href="http://searchengineland.com/google-officially-launches-mobile-friendly-labels-mobile-search-results-208949">Google Officially Launches "Mobile-Friendly" Labels In Mobile Search Results</a>
Here's a post saying it might boost ranking too:
<a href="http://searchengineland.com/google-special-ranking-mobile-friendly-sites-208957">Google Is Experimenting With Special Ranking For Mobile-Friendly Sites</a>
And this is new too:
<a href="http://searchengineland.com/google-launches-mobile-friendly-test-tool-209100">Google Launches Mobile Friendly Test Tool</a>
New advertising option:
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