Despite the plaintiff's best efforts, however, they weren't able to submit a 2012 academic paper (PDF) Schultz had written detailing Apple's blocking operating systems that didn't support iTunes (namely Linux) as evidence. WSJ notes that outside the courtroom, Schultz said his team's early work was necessary for digital copyright protection, but it wound up paving the way for the iPod's "market dominance." For its part, Cupertino is stuck to its line that the security measures -- FairPlay, for example -- were in place to protect the user experience, something it claims would've been harmed by allowing other file formats and media players. Schultz was the final witness in the $350 million case that could triple under antitrust laws, and jury deliberations should begin next week -- we'll have updates as they follow.