I saw this AdSense ad on my sidebar earlier today. It appeared in my prime 200×200px ad spot. The add code for that spot allows either image or text ads. To my surprise, Google served up what appears to be combination text/image ad. The image is reduced in size leaving room at the top for a lengthy hyperlink. Most image ads have had text in them before - but nothing that looked so blatantly like a hyperlink.
The link in the ad does not follow the colors that I selected for the text-only ads. Also, there is a small arrow (middle right) inviting a ‘positive response’ from a viewer. What do you think? Is the ad more interesting that either a pure AdSense text ad or a pure Adsense image ad? Is the little arrow perhaps a bit too inviting?
Update (May 15): Looking back, I now think Google was testing CPA ads on my site. I have seen others since then.
