That's right, Google's Toolbar PageRank seems to be updating today. It seems really uneven though. Some pages are updated, others aren't. Perhaps it'll take some time to finish updating. Currently this site is still sitting at a PR2. Let's see what happens by the end. :)

By the way, you can see the different PageRank values with this Live PageRank tool. It'll give you an idea of how your pages are doing across different data centres, and compare Toolbar PageRank to "Live" PageRank. Good luck!

Update: Live PageRank is now a thing of the past. It is reporting 0 for every domain, and Matt Cutts doubts this will ever change. Well it was fun while it lasted.