Changing a content on touch event in famo.us

Question

I am trying to make a simple Surface that would change it's content on a registered touch event. Here is a snippet:

var mySurface = new Surface({
    content: ''
});

mySurface.on('touchstart', function() {
    this.setContent('Hello World!');
});

The problem I have is that the string 'Hello World!' appears only when I move my finger on the screen. It feels like it is firing on a touchmove event, instead of a touchstart event. In fact, both of them provide the same result to me. When I emulate an Android phone in Chrome, then it works properly - touchstart fires as soon as I "touch" a button. When I open the page on a real device, then touchstart doesn't fire and behaves as touchmove.
I also checked a Famo.us demo example "Taasky". It has a "DELETE" button with touchstart event and the problem is same - in Chrome emulator it works properly, but on a real device nothing happens when I touch the display, and it fires when I start moving the finger sideways.

EDIT:
Tested with Samsung Galaxy S3 - fires when I start moving finger sideways.
Tested with iPhone5 - fires on touchstart, as expected.