Google Image Ads: Display Ads For Mobile
Yesterday Google announced mobile image ads. The ads are displayed on the mobile sites of publishers that are participating in AdSense for mobile (or that opt-in to the new program). Mobile image ads are created in users' AdWords accounts and require more or less the same type of setup as traditional AdSense ads. The image ads are keyword targeted, priced on a PPC basis and must be associated with a mobile URL (rather than an HTML page), so a mobile site or landing page is a prerequisite to participating in the program.
From Internet Marketing