paper 'poo

A friend of ours sent a link to this dissolving paper shampoo (from Spoon Sisters, $12.50) and it was too weird not to post about. The shampoo works "even with sea water" (from their description) and apparently has a fine minty fragrance. My favorite line from the description? "Sorry, cream rinse paper is not available." We like the concept, but we're not sure about the end result. How well does the shampoo work? Has anyone ever tried it? You can get dissolving laundry paper soap too.