/** Add support for 2-column footer widgets **/
add_theme_support( 'genesis-footer-widgets', 2 );

//removes default footer
remove_action('genesis_footer', 'genesis_footer_markup_open', 5);
remove_action('genesis_footer', 'genesis_do_footer');
remove_action('genesis_footer', 'genesis_footer_markup_close', 15);

remove_action('genesis_before_footer', 'genesis_footer_widget_areas');
add_action('wp_footer', 'genesis_footer_widget_areas', 0);