From the CNN/Health article linked below:
""....he demonstrates how both forks of his tongue can move independently. And it's a plus, he says, when it comes to kissing."
Gives me the creeps just thinking about the act of kissing, but I'm a guy. I wonder what women think about the kissing thing.
http://www.cnn.com/2003/HEALTH/05/13/tongue.splitting.ap/index.html