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GOT IT! cnn.com Search for news on your phone or tablet. cnn.com is first. In fact , on my iphone I see no mobile URLs. Fox News redirects to foxnews.mobi when a mobile user clicks on foxnews.com, but the foxnews.com ranks. I hope this shows you that even though a site might have a mobile version and therefore a mobile sitemap (we'd hope), that doesn't mean the mobile site will outrank the main site on a mobile device. Use your regular sitemaps and call it a day.