At school like Carnegie Mellon, it sort of figures that you'd find robots just about everywhere, performing the sorts of tasks we've traditionally left to us more fleshy types. In the two days we've spent on campus, we've seen 'bots do just about everything -- some far more autonomously than others. Take Roboceptionist -- the robotic secretary was one of the first intelligent beings we encountered upon arriving on the premises, artificial or otherwise, greeting us from a wooden kiosk near the entrance to Newell-Simon Hall. The receptionist's creators named him Marion "Tank" Lefleur -- but don't call him "Marion." It's really a sort of a "Boy Named Sue" scenario, and calling him by his birth name is a surefire way of gettin