Both parties will have 30 minutes in which to make their case. Obviously the subsequent ruling will have a huge impact on either the entertainment industry or software developers in general.
"The services are profiting to the tune of millions of dollars from music that is written by songwriters who are not getting a dime from the use of their music on these services," said Carey Ramos, a lawyer for the plaintiffs. "We believe that the (lower court's) conclusion is fundamentally unjust."
On the other hand the ruling tests the Betamax legal doctrine. In 1984 the Supreme Court ruled that Sony was not liable for copyright infringements taking place using their VCRs. The same doctrine applies to CD- and DVD-recordable drives and media, recording software etc. Should the ruling be overturned in the Grokster / Morpheus case it would essentially mean that software developers would have to obtain a permission from each and every copyright owner for software that enable users to exchange data.
"This is not just a case about peer-to-peer," countered Fred von Lohmann, senior staff attorney for the Electronic Frontier Foundation. "It is a case that will determine whether technology companies are allowed to innovate or whether they have to ask permission from copyright owners before they build new products."
The ruling from the appeals court is not expected anytime soon.
Source: Wired