I love using piklist widgets, they make the process of updating little requests by clients such a breeze. (they can change colors, text, its surrounding css, all by dropping in a widget)

In fact, here’s a screen shot of one of my widget areas:

You’ll notice that the piklist widgets all have a nice little feature.
They display the active title below them, and that title changes when you change the active widget in the drop down.

To achieve this, this is all you need to do:
In your functions.php file add this:

add_action('admin_init', 'mae_piklist_widgets_titles');
function mae_piklist_widgets_titles() {
	global $pagenow;
	if ($pagenow=='widgets.php') {
	    wp_enqueue_script('piklist_widgets_titles', get_template_directory_uri() . '/js/admin-piklist-widgets-titles.js', array(), '1.0.0', true );
	}
}

The javascript file this references is here on Gist:
https://gist.github.com/marcuseby/9017929

Finally add the following to your admin css file:

.widget .widget-title .widget-piklist-active-title {
    clear: both;
    position: relative;
    display: block;
    padding: 0px 0px 10px 15px;
    font-size: 80%;
    margin-top: -15px;
    font-weight: normal;
}

Whats nice was this was much easier than all the code needed to do it through hooks instead of js.

Marcus