The following teaser is from an article posted on 28 December 2013 at rootdig.blogspot.com
Items in the FamilyHistory card catalog now appear in OCLC–which is accessible through http://www.worldcat.org. This is only the catalog of materials in the FamilySearch collection–their microfilm, books, and other print materials.
This does not change how we access materials via the FamilyHistory library system-you cannot typically go to your local public library to order FamilyHistory library film. But it does mean that we have an alternate way to access the FamilyHistory Library card catalog.
Thanks to http://researchbuzz.me/ for the heads-up.