Bornakk and Maaven posted a thank you note to everyone in the Public Test Realm (PTR) forums this afternoon. The PTRs are now closed since patch 3.0.2 is coming out tomorrow. It was an interesting note in that it made sure to mention all of the feedback that they've gotten.
The feedback for this patch (and Wrath of the Lich King in general) has been different from previous times. There has been a ton of constructive, well thought out posts on the official forums about all the changes. Often times they've attracted the attention of Lead Class Designer, Greg Street (aka Ghostcrawler), and the discussion that results from such series of posting are quite enlightening and entertaining.
So no more PTR, a nice little thank you from Blizzard, and a whole lotta patch to look forward to tomorrow.