Yeah, it's a great concept. It's pretty well written. Mabye it's just an older plugin, but it just doesn't work with my most recent wordpress version.
It hides things from the list_pages like it should, but there's nothing in there for anonymous. And it completely jacked up all my pages, so even without the plugin installed anymore, I'm going to have to restore from backup.
Wish it worked!
Bummer. Keep it up author. It's going to be a good product.