Buy enough of the devices it's presently working on and you'll exist in an environment of "ambient care," coddled by the machinery in your home. It sounds positively utopian: When the sensors in your bed know you've not slept well and are getting a cold, a robot will wake you with a glass of freshly squeezed orange juice. When you're in a rush to get to work, the robot will make you a sandwich for you to eat on the go,