Samsung official blog said:
"Besides that there is also support in third party applications but because of the limitations on e.g.
crossing axis there might be situations where it behaves strangely while it will work just fine for most use-cases. The support is basically for gestures like pinch/zoom so don’t expect e.g. multi touch gaming with buttons pressed simultaneously on different parts of the screen to work."
Here is the video, you can check out a prototype Xperia X10:
