Google Mobile Custom Search for high-end devices like Android-powered phones, iPhone, iPod touch, Palm Pre, and Driod, formats CSE search results for mobile devices. If your visitors use any of these high-end phones, try it out, and for info use CSE mobile search. “You no longer need to repurpose your content to mobilize your web site. You can use CSE home page as preferred mobile entry point for your website. If you select a theme for your search engine, your mobile home page’ll automatically use it. If you switch to a new theme in CSE control panel, mobile users’ll immediately see change. Mobile results’ll also display thumbnails and actions if you’ve marked up your pages. Mobile users just need to type a query to find best result, to navigate your website using search!,” Google.
Screenshot from Droid phone: