WordPress 2.3alpha now includes native tagging abilities. However, there are no functions to list all available tags analagous to wp_list_categories(). This plugin’s purpose is to add those functions. They are essentially a copy of category templates modified for tags. This plugin also adds a sidebar widget making it easy to add a tag list to a widget-enabled theme. Once this plugin is enabled, the template function btl_list_categories() will be available. The function will take the same parameters as wp_list_categories(). This plugin has been updated for use with the new tag hierarchy.