I significant court decision has been made, which may have quite an effect to the whole P2P file sharing industry.
federal court Judge Stephen Wilson ruled that Streamcast--parent of the Morpheus software--and Grokster were not liable for copyright infringements that took place using their software. The ruling does not directly affect Kazaa, software distributed by Sharman Networks, which has also been targeted by the entertainment industry.
The case is far from over though. An appeal from RIAA and the MPA is expected, naturally. Interesting about this ruling is that according to the source the ruling made a clear point that de-centralized P2P software, such as Gnutella, is legal