The US Supreme Court hears arguments in a case this week that could determine the future development of technology. “The highly anticipated case, MGM Studios v. Grokster, pits all the major movie studios and record labels against Grokster and StreamCast Networks, two operators of file-sharing services.” The case is an appeal of a decision that “file-sharing companies are not liable for their users’ copyright infringement. The decision upheld a lower-court ruling from April 2003.”