Matt Cutts didn't confirm Algo changes during Update Dewey!
desphinned because the title says "Google Confirms Algorithm Change" and I didn't. Here's what I said over on the SERoundtable post:
"Just to be clear, the reason that I asked people to send in queries was because we *were not* seeing major differences between data centers. So this is more for seeing what people are talking about and less for collecting feedback on some big update."