[Plugin: Featured Posts Grid] Custom post types?

I think this is already possible by just supplying the post_type in the arguments you pass into fpg_show. For example:

<?php if (function_exists('fps_show')) {
           $args = array(
               'post_type' => 'YourCustomPostType'
               // Insert whatever other tags, category, etc. to filter on
           );
           echo fps_show($args);
       }
?>