Elgan: Siri, how do I feel?

23.06.2012
is working on technology that will spy on you in your own home, watching your body language and face and listening to your voice for cues about your mood and emotional state.

But would you want to install such a device in your home?

Maybe you already have.

's technology works via , the company's popular motion-detection gaming peripheral.

Microsoft this month filed a patent application for a method of " ."

The idea is that users would install Kinect for the fun and games. But when they're not playing, Kinect will continue to watch everything they do. It will know when they're laughing and crying, slumping or beaming.