Supreme Ct just overturned lower court decisions finding that the providers of the software that allow users to download music, movies, software... for free can be held liable for damages suffered by owners of copywritten works.
This is really a short summary and is a general interpretation, but my guess is that networks like limeware, bear share...etc the places to download music for free will pull their plugs (at elast until they find a way to address the latesty ruling).