Well, no.
Unless Google is shooting itself in the foot, then either the research is wrong or pages that attract +1's are hosted and linked to in more SEO friendly ways.
Google is really unlikely to be blatantly and obviously fixing its rankings. That is the golden goose. everything goes away when that is shown to be true in public.
Google is really unlikely to be blatantly and obviously fixing its rankings. That is the golden goose. everything goes away when that is shown to be true in public.