It looks like Google has been busy this quarter. For the second time in the fourth quarter of 2011, there is a PageRank update. A PageRank update is currently in progress, as reported in the Google forums on DigitalPoint.com.
What we initially suspected as October 2011 PageRank update was nothing more than a change in the way Google displays PageRank. It was not PageRank update. And it was not a tribute to Steve Jobs.