Europe Working on Android Antitrust Case

European regulators are preparing what could be a stern challenge to Google Inc.'s mobile software business in the coming months after a nearly four-year investigation into the company's Web search practices left rivals and European politicians dissatisfied. Two sources with direct knowledge of the matter said that with a new antitrust chief taking over in November, European regulators are laying the groundwork for a case centered on whether Google abuses the 80 percent market share of its Android mobile operating system to promote services from maps to search.