No lie: voice stress analysis on iPhone

From TUAW -

The Agile Lie Detector is an app that detects stress levels in the speaker's voice to determine if he/she is lying. The approach is a somewhat controversial alternative to the traditional polygraph test. It is not considered as accurate as hooking someone up to a machine that measures more than one physiological response, like breathing and pulse. On the other hand, theoretically anyway, it allows you to test someone who isn't physically in the same room. In fact, it's possible to analyze speech through speakers, assuming the quality of those speakers is high enough.

Anyways, either Apple knows something or it is just playing safe, as the $7.99 Agile Lie Detector is filed under the Entertainment category in the App Store.