A case that had worked its way to the U.S. Supreme Court on procedural issues has finally been decided on its merits. United States District Court Judge Ricardo M. Urbina has decided that design information on the 1930's vintage Fairchild F-45 aircraft was not a trade secret. The courts ruling found that the designs were not secret (via letter from 1955 until a FOIA request in 1997 the aircraft's producer had allowed the Federal Aviation Administration to freely give the material out to anyone who sought it) and that the designs were not a trade secret because they had no commercial viability.
AOPA Online has more background on the case here. AOPA is the Aircraft Owners and Pilots Association.