furf/jquery-ui-touch-punch — pull request #29 by ghusse (2012-02-24 22:24:54+00:00)
Title: #22 draggable element not working on an iPad

With this correction, it works.

I understand reasons why you proceed like you did, but it seems that the touchevent is not fired by the widget element.

If I bind to document (once), everything works fine in my case.