Google exports toolbar PageRank about once a quarter. However, it's not on an exact schedule and it has sometimes been longer than 3 months, and sometimes less, between PageRank exports. But real PageRank (as opposed to toolbar PageRank, which is just the PR as it existed at a particular point in time) is constantly calculated and changing. As far as toolbar PR goes, there have been changes on some datacenters (esp. 72.14.*) so it looks like something's in the works. Just hang in there, it should be pretty soon. But whether it will be tomorrow, or a week, or a month, is anyone's guess. Only Google knows for sure.
At least 54 days 5 hours and a few minutes if I remember well First page for the keyphrase "next pr update"
Today is actually the last day... At least it is supposed to be... For toolbar pagerank update. Google was updating pageranks the whole week...
So what's the big deal? I mean if you KNOW that there is no PR update then why worry? It's not that big a deal. It'll come. Sooner or later it WILL come for sure. Till then, please don't let PR get on your nerves. You should use the SEARCH before starting another PR thread :s