Rosalind Picard of MIT and Rana el Kaliouby at the University of Cambridge are working together to create a gadget that could easily read the emotional state of a person. This device uses a pair of glasses and a tiny camera that is connected to a card-sized computer.

Camera is used to record the person you're talking to, and the tiny computer analyzes person's expressions. If you get a positive response from a person, the LED light in the glasses will flash green or red if you get a negative response. Headphones are included as well, so you'll get a verbal feedback as well.

This gadget is amazing, but we don't believe it will be available commercially when it's finished.

[via Ubergizmo]