It's called OnStar: remote disable, and more, all at the click of a command key. I've been waiting to see news of a car-theft ring using OnStar to steal cars.

also works: sudo shutdown -h now does not work: shutdown -h now

I think it's pretty darn good now, but I'll get one in a month or two.

Then I'll get another when the next generation comes out (and waterfall the original to the kids).