The Canham back is here. Motor wound, powered by a 9v battery. Robert White reports that Arca Swiss should have an adapter plate early in the year (I think, I'm not sure I understand English ;^)). Jeff Wheeler of Quality Camera in Atlanta reports that an ABS camera using this back from Mike Walker is in the works, ETA March-ish if you believe manufacturer's schedules, price point $2,500 for the camera and back, but no back movements.