However, any Penguin Update is still in development and not launched into prime time so far.
Are you seeing it anywhere Tedster? I have been looking on lots of different google.tld's all over the world and I can't make any sense of any of it. The SERPs are all OVER the place. Host crowding Not sure if that's the right phrase or not) from one domain on one TLD and another on another. A site on page 1 on one TLD and page 5 on the next and top ten on the next few. It's like looking into the eyes of a mad man.
My own site #1 for quite an obscure SERP in google.au and not in top 5 pages on .co.uk or .com