Yahoo announced that <A HREF="http://www.cio.com/blog_view.html?CID=24417">its mobile service offering</A> is currently available to users of phones that run on Microsoft's Windows Mobile operating system, Reuters reports. The service is available for download directly to Windows Mobile smart phones, according to Reuters. Yahoo went live with its Yahoo Go offering this year, enabling users to access email, its search engine and a digital photo service via their cell phones.