I'm seeing the changes too, in fact I was going to post an update to my comments in
Captain Sparrow's thread. Across the board, I didn't really gain or lose traffic after last week's Google PR/whatever change. The loss I had at one site was compensated by about the same amount at another site. Odd. As of today, it has reversed again and the traffic is back to where I'm used to it being - and where I really want it to be. Wacky damn search engines.