In Taiwan, my home country, the situation is similar. In 2002, the copyright holders sued two p2p networks named respectively EzPeer and Kuro for infringement. In the EzPeer case, the Shihlin District Court in Taipei found it's not guilty of infringing copyright law. Conversely, the Taipei District Court sentenced three Kuro's executives and a user to prison. The whole different results has made the media industry confused. The reason is the court thought EzPeer has alternative good functions, but Kuro only promoted itself completely by uploading copyrighted media files.
It's kind of like the summary judgement made in U.S. before the Supreme Court declared the opinions of the MGM v. Grokster. However, in 2006, EzPeer and Kuro successively settled out of court with the plaintiff, so the two cases couldn't be considered again by the Court of appeals in Taiwan.