(3)
Google may be testing - or it may be a bug - removing the breadcrumb from the mobile search results snippet. Sergey Alakov posted a screen shot of the snippet just showing the domain and favicon, without the breadcrumb trail of the page.
Sergey posted this on Twitter - he spots a lot of tests, although, for all I know this can be a bug.
I personally cannot replicate it, this is what I see for this snippet:
Do you want Google to do away with the breadcrumb in the snippet?
Forum discussion at Twitter.
