Apple has responded to a damages retrial verdict that could someday see the iPhone maker paying out $625 million -- nearly double the original damages -- in a case it lost against VPN company VirnetX over VPN technology used in FaceTime, Messages, and VPN on Demand, which the jury said the Cupertino company infringed willfully in the original complaint, and did not do enough to avoid further infringement after the initial verdict. On Friday, Apple filed a motion calling for a mistrial.