CNET: Google wants ruling on search trademark law
USAToday/Reuters: Google asks U.S. court for ruling on trademarks

Google is being proactive and asking a court in San Jose to rule on what protections are afforded trademark holders. Apparently, there is one highly zealous trademark holder, American Blind & Wallpaper Factory, who wanted Google to apply fairly broad trademark protections to search terms. Soon we'll see what the court has to say. It was bound to happen, as a precedent needs to be set, but Google in the past has been unable to find an opponent willing to go all the way to trial (or at least court filings) in order to do so.