If you play World of Warcraft on more than one computer, you'll have run into problems keeping your setup just how you like it. Sure, World of Warcraft syncs its own settings, but not your AddOns or their settings.
Enter Teleport: AddOns, a free program for Mac OS X and Windows that syncs your AddOns and their settings via Dropbox or an external hard drive or USB stick -- with more sync sources coming soon. Whether you play World of Warcraft on your Mac or PC (or both!) Teleport: AddOns has you covered.
Mac OS X 10.6,
Mac OS X 10.7,
Mac OS X 10.8