The CMVP has been busy updating the FIPS 140-2 Implementation Guidance. If you delayed reviewing the April update, then delay no further. The May update deserves your attention.
See the May 2, 2012 document and changes here:
http://csrc.nist.gov/groups/STM/cmvp/announcements.html
Note: You may need to clear your browser's cache to open the latest IG document.