They mention that the computer will be represented by a round avatar. If it includes voice recognition and synthesis it should be quite impressive. It has been tested pretty thoroughly and no one is saying how well it's done in the testing. If Alex Trebek can be snarky to an AI program, maybe this could become a regular feature. Instead of "Are You Smarter Than A Fifth-Grader?" we might see "Are You Smarter Than A Supercomputer?"
IBM calls their project DeepQA (I think QA means "question and answer", not "quality assurance").