Philips Research developed the iCat robot which has been sold to over 40 universities.

Time magazine has already selected the iCat as one of the "Coolest Inventions" back in 2005.

The iCat Research Platform is a research platform for studying human-robot interaction. It consists of a user-interface robot called iCat, the Open Platform for Personal Robotics (‘OPPR’) software, iCat is a plug & play desktop user-interface robot that is capable of mechanically rendering facial expressions. This capability makes the robot ideal for studying human-robot interaction. The robot has been made available by Philips Research (Eindhoven, the Netherlands) to stimulate research in this area further and in particular to stimulate research topics such as social robotics, human-robot collaboration, joint-attention, gaming, and ambient intelligence.

The long-term goal is to make robots better interact with humans.
More details on the Philips Research iCAT site.