The 0.2 version of AddressBook2LDAP for Mac was provided as a free download on our website. The software lies within Business Tools, more precisely Project Management.
From the developer:
AddressBook2LDAP allows you to share your Address Book contacts with others via a LDAP directory. It transfers selections of contacts (individuals or groups) from the Address Book to the LDAP directory. The address book already has the capabilities to connect to LDAP and access contact information. Many mail clients can access and LDAP directory as well to access address information.
You may want to check out more software for Mac, such as report-designer, Cloister or Express Project Management Software, which might be similar to AddressBook2LDAP.