What is the difference between the XL1 and the XL1S camera's? I don't get it and there is a pretty big price difference. Anybody know?

From some random site I found on google: "Canon's XL1S offers a number of improvements over its predecessor. It incorporates a more user-oriented interface for improved operability, as well as excellent new manual functions - such as advanced image control and custom preset possibilities - in response to users' needs."