Looks like Google is just inflating the values!? If everyone is going up, then PR just doesn't mean as much as it used to (which wasn't really anything to begin with) My sites have gone from 2->4 0->4 0->3 0->3 0->2 0->2
My most important sites went back up to 5. Actually I had two 5s and a 6. Maybe 10 months ago the 6 fell to 4 and one of the 5s fell to 4. I hope to get my 6 back, but lost a link from a high PR site. They did a page redesign and dumped their suggested links.
After working hard I got my PRs going UP It's nice to see such a results after working hard for months.
Went up, pr 0 > pr 2 and w3bmaster is right, i can honestly say i did like nothing with the site and magically it goes to pr2, when last time i was actually working on it, and it went down to a pr 0, figure that one out.