EU Competition Commissioner Joaquin Almunia in a discussion late Tuesday raised the possibility that a formal antitrust dispute with Google could start in late March. He informed Reuters that comments from investigators would come in near the end of the quarter, which ends that month, and that he didn't "expect anything sooner" for a full complaint. Leaks had tipped an early 2012 filing, if it went ahead at all, but hadn't been corroborated directly until now.