Dlink DCS-1130 motorised network camera
Not a new product category, but as usual time and technology brings products that were once the domain of big business down to a more consumer friendly level.
The DLink DCS-1130 security / web camera is motorised for pan/tilt adjustment, wireless and can be controlled via a web browser. It can store the video on a PC or send it out to the web but I like the third option of viewing it on a 3G phone so you can monitor the builders / burglers / cheating spouses live in realtime.
(Photo courtesy of Engadget)