Ok, 2 things the first being the opt out Link here I think it’s good that google having given me the choice, I would have like more information on the test and i wouldn’t have opted out.
second thing, while trying to find out more about the test, I was really not impressed with Googles serps !! to say the least
http://www.google.com/search?q=google++ad-serving+tests&pws=0&hl=en dupe contnet and dig clones ohmy..