Sand - 1:10 am on Apr 25, 2012 (gmt 0)
And here we are on Tuesday evening. Still hanging tight at 50% of where I was a week ago.
The new algo update (assuming it's fully rolled out already) hasn't made a difference one way or the other for me so far in terms of traffic or rankings.
I still don't think it's a penalty of any sort, given the relatively short distance I've fallen (still 10 spots or less for most keywords). So I'm just hanging in limbo, going about my business and publishing new content and marketing things each day like I always have.