I've been rolling around the concept of a robot chicken tractor in my head. Basically uses the CPU (Central Processing Unit) of a Roomba from iRobot:
http://www.irobot.com/sp.cfm?pageid=95
Except, the thing would be a large, enclosed chicken tractor. The Roomba is programmed to systematically vaccuum every inch of your living room. This chicken tractor would sector off your "grazing" area and move around so the chickens don't scratch the land down to bare earth.
It would have an automatica waterer, and at a pre-set time a recorded call would be played and feed would be dispensed.
You can monitor your hens remotely with a wireless internet camera and possibly interact with them - press a button on your keyboard and a bell would ring and feed pellets would be dropped in front of the camera. Multi-camera views allow real-time oberzervation of egg laying and roosting chickens. This could lead to internet chicken farming as a cottage industry. I'm sure some folks would get a kick out of paying $1 for the chance to interact with chickens over the internet! Heh!
Advertizers once paid a nickel per view for a guy with a website of a pot of coffee brewing. The webmaster made over a million bucks in a few months!
Netting overhead keeps the hawks out. A suspended perimeter of electric fencing keeps the other predators at bay. Solar panels and a battery bank will keep the fence charged and run the wireless cameras, appliances and coop lights.
I've seen remotely controlled guns for internet hunting operations. Maybe do the same to take potshots with a high-powered airgun at predators that come too close. Push another button to trigger a siren. For fun, the internet cameras could be trained on a decoy chicken willed with C4. Could be fun to watch a predator go after that one!
I'd only have to drive out to the "farm" once every month or so to fill the feed bin and refill the waterer. Eggs would automatically roll down a gravity chute into a refrigerated area for collection.
Don't laugh. It could happen! Robot Chicken Tractors are the way of the future!