iDoorCam. . It's WiFi-enabled, and contains a button, day- and night-vision camera, microphone, speaker, and motion sensor, letting you see and communicate with whoever rings your door. It pairs with an included iOS app, letting you monitor your door from inside your home, at the office, or away on vacation, so you can choose whether to interact, or just let it ring.
Google's New Glass Credo: Don't Be Creepy: Google made "don't be evil" the company mantra during its rise to tech industry power. Now the search giant is warning owners of Google Glass not to be "creepy" in a better-late-than-never nod to the etiquette questions surrounding the wearable computer.