Ubuntu – Two finger touchscreen gestures on ubuntu 13

Ubuntu worked with my new touchscreen enabled notebook (Dell Inspiron 14R) out-of-the-box, which was a pleasant surprise. But it seems to have only three and four finger gestures, as hinted here:

https://wiki.ubuntu.com/Multitouch

But the most common patterns like pinch to zoom, or two-finger scrolling are absent (maybe a legal issue? are those patented?). I have the two-finger scrolling gesture correctly working in my trackpad.

I saw some videos of people using ginn to add this kind of gestures. I installed ginn from the repositories with apt-get, but when I try to run it I get a error subscribing to gestures.

Did anyone around managed to make something like this work? Any pointers on why ginn is not loading?

Thanks.