S3 Graphics filed suit against Apple over two patents related to VGA controllers and image rendering.  In July 2011, HTC acquired S3 Graphics from VIA Technologies for $300 million.  S3 Graphics sued Apple in the ITC in 2010 and won a preliminary ruling of infringement against Apple on July 1.  Apple has filed counter suits against S3 in ITC and in district court.  9/22, District of Delaware, 1:2011cv00862.