In addition to this change, Barry Schwartz at Search Engine Roundtable points to a WebmasterWorld thread, where someone noticed a new form of ad that shows a product image at the top right area above the regular AdWords ads.

He provides the following screenshotAt Google, were constantly experimenting with new features, tools and visual representations to improve the user experience and usefulness of our ads, the company told Schwartz when questioned about the ad. In accordance with that philosophy, were planning a beta test to show richer product information in the ads for shoppingrelated queries. This test will only be visible to a small number of U.S. users.A keynote and QA with AdWords Business Product Management Director Nicholas Fox at the Search Engine Strategies conference in San Jose provided some additional details about what Google is doing with AdWords. The company is even looking at matching information about your product or service and automatically building ads based on crawling your site.