Every time you click inside a textbox it creates a sibling input element. Also, the initial textbox's value is never set.
Recreation Steps: Go here -> http://jquerymobile.com/demos/1.3.0-rc.1/docs/forms/textinputs/ In Chrome or Firefox, right click the first textbox and choose "Inspect Element". Now left click inside the textbox repeatedly. You will see that every time you click, an input element is created. Also, the initial textbox never has its value set.