Are you a user of the Google Maps address book plugin for the Mac? If so, you'll be interested to hear that Brian Toth, the plugin creator has established a beta release page. Here are Brian's words from the page:
On this page I will post beta builds of the Google Maps Plugins for testing. Anyone is free to download them, just understand that things may not work. This way, you can test out the latest additions and report what's right and what isn't quite working to me before an official release.
Check it out..