GMAP: Google Maps For Your Address Book
Here is an app that will let you get a map of or directions to an address in your Address Book (Mac only) from Google Maps.
Comes with an installer as well. Just click and hold your mouse on top of an address and a menu will pop-up asking which you would like to retrieve.
Much better than having to copy and paste the URL into your browser.
The author of the script is also asking for some help with an Applescript that doesn’t seem to want to behave properly. If you know Applescript, see if you can help him out.