It was only a matter of time. The U.S. Supreme Court created a cause against file sharing developers for "active inducement." That was used for the basis of the recording industry suing the top developers for abetting copyright infringement. Now it's being used by the individuals who have been sued by RIAA.

The lawsuits includes the following claims.
> Kazaa deceptively marketed its product as allowing "free" downloads.
> Kazaa designed the software to create a shared files folder and make that folder available to anyone using Kazaa, while at the same time failing to make the user aware that it had done so.
> Kazaa installed spyware on users' computers that made the shared files folder accessible to the Kazaa network even after the user had removed the Kazaa software.