Home theater headsets have come a long way, but there's still a common problem: they tend to dominate your face. It's hard to know when someone wants your attention unless they tap on your shoulder. You might not be quite so cut off in the future, though. Kopin and Pico Interactive have unveiled a wearable home theater prototype, the Eagle, that promises the equivalent of an 80-inch screen while giving you better awareness of the outside world. You probably wouldn't want to walk with this on your head, but it could give you a peek at an approaching person before they say hello.