How can I display a nested JSON string using a JQuery Mobile nested list?
The standard release of JQuery Mobile 1.2 has Nested Lists (similar to browsing a file manager on a smartphone i.e. click on directory and it brings up more directories and files)
http://jquerymobile.com/demos/1.2.0/docs/lists/lists-nested.html
via Serverside Script
You could create a single script page that dynamically loads the JSON node as a parameter within $.mobile.changePage(). You should be able to create the current view of the tree from this.
via Javascript DOM
If you're doing this by updating the DOM with javascript, I believe after you have updated the DOM with the current view of your JSON tree, you have to run $('#mylist').listview('refresh') to update the styling.