Some pages I published 3 days ago have PR0, some pages I published last week got PR0 earlier this week. Some pages I published 3 weeks ago got pagerank 2 weeks ago. It seems that Google is updating toolbar pagerank much more frequently right now.
Is it doing the same with your site(s) right now too?
It does seem like it. Hard to tell if the situation will stay the same or not - but if it does, I'd like it. If they're going to show PR on the toolbar, then keeping it relatively current instead of 4-5 months out of date should be within Google's reach.