Hmmm that explains a lot: "...shouldn't focus on PageRank"

Google removes PageRank from its webmaster tools

Google's Susan Moskwa says: "We've been telling people for a long time that they shouldn't focus on PageRank so much; many site owners seem to think it's the most important metric for them to track, which is simply not true. [...]

We removed it because we felt it was silly to tell people not to think about it, but then to show them the data, implying that they should look at it."

For the time being, the PageRank will still be displayed in Google's toolbar.