Via The Next Web, there’s a new app developed by Orbicule called Witness that “turns your Mac into a home alarm system, using its iSight camera as a motion sensor. If motion is detected, Witness sends mugshots and video to your iPhone or iPad.”

TNW explains that whether you’re trying to capture your evidence of your roommate’s sticky fingers or using the app as a simple home surveillance solution, Orbicule has designed Witness to:

“…eliminate recording hours of uneventful footage and it also saves you from wasting precious bandwidth. While operating Witness remotely from an iOS device, users can activate or turn off the alarm in addition to receiving a notification that something has triggered the camera.

When the alarm is activated, Witness will capture approximately 15 seconds of video and will automatically upload the footage to Orbicule’s servers while sending a push notification to the iPhone or iPad.”

If the intruder steals your Mac, you’re out of luck.  But at only $39 with a 30-day full refund, it’s an interesting tool to get some surveillance from your iSight camera by turning it into a VMD device.  Check out the video: