Keep in mind there is nothing long-established, but several people started to notice changes both in PageRank and backlinks count numbers.
One of my sites apparently gained PR as well. casino went from a PR0 to a PR2.
I tried to check on Google’s data centers but most of them are behave peculiarly (treatment a PR0 even for recognized websites). One tool that appears to be working is this one.
No one was expecting such an early PageRank update in 2008. The last one, as you possibly can keep in mind, happened late in October and it created a lot of buzzing due to a new policy that Google decided to adopt towards websites that were selling text links without the nofollow tag.
Have you noticed any changes at your web sites?