This kind of stuff has been around for years, but until now it's been prohibitively expensive. Now, for a mere $199 and a monthly fee, you can feed your paranoia with a webcam that sends images and SMSes to your cell phone AND blasts out an audible alarm.
We're a surveillance society, and it's only going to get worse. It seems stuff like this—cheap, fairly well-made, and well-marketed—surveillance gear is soon going to be hanging from every rain gutter on every house everywhere. Oh well. We'll try not to pick our nose in public.
Product Page [SentinelVision]