Sony on Wednesday revived its robot dog, Aibo, which it put down, so to speak, in 2006. The autonomous entertainment robot brings fun and joy to the entire family, Sony claimed. It can bond emotionally, give people love and affection, and let them experience the joy of nurturing and raising a companion, the company said. "Aibo's nice in the sense that you remove all the burdens of ownership and gain the benefits," observed Ray Wang, principal analyst at Constellation Research.