Today, I discovered ad blocks (of text ads) on digg.com that similarly look like any other text ads. When I hover on the links it points out to msn website. http://img460.imageshack.us/img460/5307/diggtechnology119393568ll2.png Do you think this is what the adcenter ads will look like on publisher website? I can't wait.
It's adsense premium format. If you're a premium publisher, you could just format your ads anyway you like. You could even remove the "Ads By Google".