For those out there who care about such things, the "yes" Bit is a octahedron, the "neutral" Bit is a compound of an icosahedron and a dodecahedron, and the "no" Bit is a second stellation of a icosahedron.
He left out one model, though; the neutral shape actually cycles between the overlayed icosahedron/dodecahedron and (I think) a triakisicosahedron.
I'm disappointed to realize that only the octahedron and triakisicosahedron are represented in the polyhedra screen saver, because it doesn't include overlays or double-stellations. Otherwise, adding a -tron mode would have been trivial...
The polyhedra saver needs to take inspiration from Adrian Rossiter's Antiprism, which also runs on Mac OS X.