WiFi-controlled sentry robots have been our playthings for a few years now, but sure as Sunday morning, they don't help us get much work done. Why would you, when you can discreetly spy on your house, kids and neighbors from the convenience of a web browser? That's what we thought. But now, there's a robot to assuade your guilty conscience: the G182, a complete VoIP webcam system built on top of a pseudo-Roomba