Have a look at the events fired by JQM here http://jquerymobile.com/demos/1.1.0/docs/api/events.html. You want to handle the "taphold" event.
EDIT Soon after posting this I ended up seeing the same problem in my app! I found that adding this style, similar to what @chrisben suggested fixes it:
body {
-webkit-touch-callout: none !important;
}
I don't have any form elements on my app so I don't know about those but links and buttons all work perfectly fine with this style added.