I'm wondering how long everyone will refer to updates as "minor". I don't think any other kind of update will happen. Like I've said before, the vast majority of pages will never see any kind of change to the toolbar PR and therefore for most sites what shows in the toolbar doesn't really mean anything any more... Am I imaging things, or did Google already take the PR indicator out of the toolbar at one point. I think that's why I stopped using it.
Well, some sites are gaining PR and others lost, so, one day big G will be update all the websites, we just not know when.