diberry - 9:11 pm on Apr 19, 2013 (gmt 0)
Okay, so after fixing the redirect issue, at least the page is back in Google for its keyphrase. In the 600s, but at least it's there.
Of course, this only addresses part of all of what happened in response to changed I made AFTER Penguin, not the original Penguin issues. Am still waiting to see where it ends up and whether Bing puts it back in.