Microsoft has spent the past several months refining Bing results on the web and the desktop. Now, it's Windows Phone 8's turn. An upcoming Bing refresh for the platform will reduce the search filters to three -- Web, Images and Videos -- while providing more relevant information on the first result screen. The tool is also more likely to show usable results in the first place, with immediate answers available for subjects like flight schedules, movies and word definitions. Photo hunters get some additional love between infinite scrolling and auto-sized thumbnails. Just don't expect the new Bing features right away. Microsoft is delivering the update to American devices over the course of the next few weeks, with international users to follow afterward.