GigaOM: Google is asking the Federal Communications Commission for permission to test a mysterious Wi-Fi and Bluetooth-enabled “entertainment device,” in employees homes in four U.S. cities. So inquiring minds want to know, what exactly is it? And why is Google filing for the experimental license? Does that mean the search giant is getting into manufacturing its own devices? (Culture, Gadgets, Google, Google, Hi-tech, Industry, Services, Web)