i gave it a quick spin, i exported one of my construct 2 projects using the phonegap export and added an import line for the wm.js file that I think is required and i got it to work on my phone. It seemed a little buggy and I had some issues, but I could be doing something wrong.
Performance was just okay, maybe comparable or worse than Crosswalk? But again I might be doing something wrong, I've only played with it for a few minutes