Yes, they are, and they just announced their U.S. assembly plant location as Mobile, Al for A330 tankers in case they win. We shall see if they win the contract or not.
Boeing has already build a 767 based KC-330 (Talk about your coincidences in numbering!) and delvered it to Italy right after the Paris Airshow. Has EADS built a tanker of their A330, or are they starting from scratch in the tanker business?