Daniel T. Barry, a Singularity University professor, gives a lecture about the
 falling cost of robotics technology and how these types of systems are close to 
entering the home. Dr. Barry, a former astronaut and “Survivor” contestant with 
an M.D. and a Ph. D., has put his ideas into action. He has a robot at home that 
can take a pizza from the delivery person, pay for it and carry it into the 
kitchen.

“You have the robot say, ‘Take the 20 and leave the pizza on top of me,’ ” 
Dr. Barry says. “I get the pizza about a third of the time.”

- http://www.nytimes.com/2010/06/13/business/13sing.html