I am seeing toolbar PR update for many of our clients site, which includes update of inner pages PR as well!
A quick look at the forums seems to be confirming the same.
Looks like Google is increasing the frequency of these updates. The last one happened two months ago.
As usual, you can check your site's PageRank on different Google servers at http://www.pagetraffic.com/seo-blog/pagerank-checker/.
Although Matt Cutts did hinted the same at his blog