Yet another Google user interface test to add to our list. Google is testing placing the breadcrumb/URL at the top of the snippet, above the title and above the description.
Google has tested this and similar user interfaces like this before but now folks are seeing it again.
Paul Shaprio notified me of this and posted it on Twitter yesterday.
Here is a side by side showing on the left what most people see and on the right is the test showing the breadcrumb URL at the top:
I don't think it matters much either way.
Forum discussion at Twitter.