wheel - 4:16 pm on Sep 14, 2010 (gmt 0)
My main site went PR5 greybar to R5 in the last day or two.
I have one page on my site that was used for a viral campaign. It was a pr6, not it's greybarred. the greybar is closer to the truth, a pr 6 on that page was an anomoly.
So yeah, something going on.