"NOTICE OF JOINDER filed as - NOTICE by Apple Inc. re 31 MOTION to Apply Collateral Estoppel regarding Claim Construction Ruling in Prior e.Digital Case joining reply filed in case no. 3:13-cv-00356-dms-wvg (Barrows, Sarah) Modified on 7/18/2013-wrong event used (aef)."
As I remember re 31, they did not join a reply, they initially filed in support of case no. 3:13-cv-00356.
As I see it, they are now in the gang...
anyway...
doni