Pretty cool plugin!
Couple of issues:
1) In the plugin dashboard, the "Plugin Update Notifier" field is giving error:
Warning: call_user_func() expects parameter 1 to be a valid callback, function 'vpl_setting_update_fn' not found or invalid function name in /home/********/public_html/wp-admin/includes/template.php on line 1120
2) When deleting a post that the plugin has already added to page using shortcode, the does get removed and ends up leading to 404 page when clicked.
Using Canvas theme from WooThemes if you are wondering or matters.
Thanks for sharing your plugin.