On the other hand, if one side, like the US gets their war-bots online first and no one else has any, than it'll be robots vs. people which is very scary. Maybe it's a good thing that the Japanese and Chinese are leading the way in robotic technology.
Speaking of which, I just heard about this robot that's all the rage in Japan. The robot, called wakamaru, can speak and understand Japanese, remember and recognize up to 10 familiar faces. It can wake you up in the morning, remind you about appointments and even call you up if there's trouble at home. It gets around the house on its own thanks to an internal map, and returns to its charger when the battery's low. Best of all, it runs on Linux. Wired reported back when it was released.