dovecot - May 2011 - libwrap does it work on in 2.0?

Hi,

   I noticed recently that libwrap (TCP Wrappers) is supported,  
although disabled by default, in the current Dovecot 2.0 but doesn't  
seem to be mentioned anywhere on the wiki. Is this working well/at  
all? Anyone care with experience using this care to share their  
experiences? My OS is FreeBSD, I noticed on some Linux distributions  
there may be issues, but this won't affect my installation.

thanks Andy.