This does seem to be a true update (as opposed to a rollback), as new sites with no previous PR is obtaining PR on the following datacenters. A quick and easy way to check is to use this tool.

216.239.57.99
216.239.57.104
216.239.53.99
216.239.53.104

There may be other datacenters as well, but those are the ones I know about. So, if you care about PageRank (and I suspect more do than will admit) your wait is over.

About the Author: Donna Fontenot

Donna Fontenot, aka DazzlinDonna, is an Internet Entrepreneur and SEO, who has long utilized search engine optimization and affiliate marketing to create a successful online business. Her goal as an ebusiness coach is to help others make a living online from the comfort of their homes (and in their pajamas). Her motto is "You'll never shine if you don't glow."