crobb305 - 7:25 pm on Mar 12, 2011 (gmt 0)
Sometimes the cached date can even move backwards in time.
I have seen this happen. I have seen Google display an updated page title, but the "cached" version shown is much older. You can sometimes get a better idea of what Googlebot has seen recently by looking at the page preview (magnifying glass).
Tedster, what is your feel on "thin" pages as they may pertain to Panda? Do you get the feeling that they should be deleted or added upon? I suppose a thin page could be deleted, with the content/ads moved to a new page (while adding more and better content to the page), but then you lose inbound links to that old page. Alternatively, we should wait and see if Google reverses these ranking drops via a "fix".