www.greatmindsworking.com

According to this Discovery Channel News article, "A new robot can recognize the difference between a mirror image of itself and another robot that looks just like it.

This so-called mirror image cognition is based on artificial nerve cell groups built into the robot's computer brain that give it the ability to recognize itself and acknowledge others.

The ground-breaking technology could eventually lead to robots able to express emotions."

There is Slashdot discussion here.