Google has once again updated the Toolbar PageRank. The previous update took place only 3 weeks ago, on 27th June 2011. It seems this is more of a corrective update. As we posted earlier the last update got some freaky results with Google.com dropping to PR 9. Its back to PR 10 again and so are many other sites including Twitter, which lost it PR due to wrong settings in robots.txt.
Here is a video from Matt Cutts on Why aren't the Google Toolbar PageRank values updated more often?
Did your website got affected with new PR update?