Ends sewn in and buttons sewn on.
ETA 20130608: Finished about 36 hours after casting on (including breaks for naps, eating and sleep), all bar sewing in the ends and sewing on some buttons (which we have yet to source).
Finished cardigan weighs 64g at this stage and so used 1.28 balls of yarn (roughly 173.44 m).
Inspired by Newborn Top-Down Cardigan by Nancy Pietraszek, a free pattern, and also by other free patterns and the Elizabeth Zimmermann Percentage Method of top-down and all-in-one sweater/cardigan construction. Reworked, unvented (a word coined by Elizabeth Zimmermann) and improvised by myself using yarn that was in the stash / leftovers-box.