] Several years ago the American Society for Artificial
] Intelligence issued a challenge: Build a robot that can
] operate like a conference goer. The robot, dropped off at
] the meeting site had to make its way to the registration
] desk, register for the conference, locate a meeting room
] and deliver a lecture. An autonomous robot named Grace,
] short for Graduate Robot Attending Conference in
] Edmonton, met that challenge last year in Canada.

The related stories are also interesting.