This plugin simply packages the RWD Image Maps jQuery plugin for use in WordPress, providing an easy way to make image maps responsive in a WordPress theme.
This plugin is licensed under the GPLv2, and the jQuery plugin is licensed under the MIT license.
It goes without saying, but the RWD Image Maps jQuery plugin requires javascript to be enabled in the user’s browser for it to work its magic.
If you have questions or problems with the RWD Image Maps jQuery plugin itself (not the WordPress wrapper for it), go to the jQuery RWD Image Maps plugin page on GitHub.