There’s a lot of cool things about Google’s new “Nexus Q,” a billiards ball-sized streaming player that can stream music and video from the cloud, hook up to televisions, connect Android’s tablet or phone to home entertainment systems, and even has its own speakers. But the coolest might be the Nexus Q’s country of origin: the United States. It’s true. While other electronics manufacturers are flocking to China, Google has chosen to produce the Nexus Q in California …