OCLC may be trying to pull something sneaky with its new policy of claiming contractual rights over the subsequent use of data created by OCLC. In other words, the data in library catalogues couldn't be used to make anything which competes with OCLC in any way.
Needless to say, this would have a hash chilling effect on the creation of open databases of library content.
As you might expect, the library blogosphere is on fire with the news. The podcast presenter at LISNews gave a commentary in the matter during LISTen #47.
Story from Slashdot.