The IP (intellectual property) in YFS seems to be derived from AFS's IP. If that case can be made, IBM or any other entity could force YFS back into the open source domain.
The "look and feel" of YFS may also be a problem - see "Broderbund" or better yet their attorney's web page. http://www.quinnemanuel.com/attorneys/stern-claude-m.aspx My direct experience is from a dispute Tektronix had with ParcPlace over Smalltalk licensing back in the '80's. AFS may be able to claim infringement against other file systems because of its prior art (but its unpatented?). Which brings up a point, has IBM or CMU protected AFS's IP in any way? Tedc
