Very happy with such a simple plugin that is even compatible with Networks for WordPress http://wordpress.org/extend/plugins/networks-for-wordpress/ (limiting the list to sites in each network instead of burping out every site on every network like other 'list blogs/sites' plugins do!) I would like to do a suggestion / request for future versions...
To make the shortcode work from inside a text widget (eliminating the need for a seperate widget) simply add this code:
if (!is_admin()) add_filter('widget_text', 'do_shortcode', 11);
Thanks for maintaining this useful plugin :)