For example, it makes them editable using the Front-end Editor plugin.
All the cool widgets are doing it:
http://core.trac.wordpress.org/browser/trunk/wp-includes/default-widgets.php
For example, it makes them editable using the Front-end Editor plugin.
All the cool widgets are doing it:
http://core.trac.wordpress.org/browser/trunk/wp-includes/default-widgets.php