The Singularity AS 3 Parametric Curve Library was used by Milo Creative (Paul Argent lead producer) to build some of the games at the BBC CBeebies site [they were responsible for ‘Bubble Pop’, ‘Wake up Shoop’, ‘Sun and Moon’, and ‘Music Moods’] I still get some AS errors on the initial buttons, but ignore and go on. An interesting use of computational geometry!