Hello, Julien Danjou's google-contacts.el is a GNU Emacs package to display contacts from Google Contacts within Emacs. I have recently added support to export contacts to org-contacts format (See contrib/lisp/org-contacts.el).
Calling `M-x google-contacts-to-org-contacts' will export all contacts into the current buffer. There currently is no support for synchronisation. http://julien.danjou.info/projects/emacs-packages#google-contacts Regards, Rüdiger