Google has announced a new AdSense mobile product named AdSense for mobile search. AdSense for mobile search gives carriers and mobile publishers a quick way to simply embed a Google search box on their mobile sites.
This is a lot like AdSense for Search, but the mobile version. Currently, this is a private beta so you need to fill out a form and be accepted into the beta to give it a try. Plus, this is fully hosted by Google and runs of their servers.