A court has ruled a week or so ago that the RIAA can no longer subpoena isps to turn over subscriber information:
RIAA Can't Shakedown ISPs
Recording industry suffers setback in digital war
The Recording Industry Association of America's effort to stop illicit file-trading suffered a major setback Friday when a federal appeals court ruled that the organization can no longer use copyright subpoenas to force Internet service providers to identify subscribers who are downloading music
http://www.rollingstone.com/news/ne...e.asp?nid=19126