LIN + Arduino?

fkeel:
care to describe a potential application?

Smart outdoor lighting. We live on a few acres that border the National Forest Service. Coyotes (and now mountain lions) occasionally poach a family pet. I really don't want my dogs to be eaten. I want motion sensors and lights far enough from the house to give us an early warning (think yards instead of feet). Which means long wires. If a single pair of wires can carry both power and communications, I can use basic outdoor lighting cable, the cable only has to pass through each node once, and the whole thing becomes a network.

Halloween. Just imagine how simple setup would be for a yard display if only a single cable needs to be run through all the props and sensors?