I managed to work (working example: http://www.genovaperte.it/item/antico-forno-ursida/ - see it from iPhone / iPad).
I posted a question with my own answer to StackOverflow in a more general fashion. I'm dynamically placing a trasparent div over the Street View, toggled by a toggle button (like the one in Home page map). I also dynamically show/hide Street View controls according to its enabled/disabled state.ù

Here the full code for WP Directory template.

In style.less.css add these rules:
.draggable-street-view-toggle-button { cursor: pointer; background-color: #fff; border: solid 2px @firstThemeColor; z-index: 1000; position: absolute; right: 40px; padding: 10px; }
.prevent-dragging { position: absolute; width: 100%; height: 400px; z-index: 999; }
#directory-main-bar.hide-gmnoprint .gmnoprint { display: none; }

In map-single-javascript.php:

around line 56, where streetview is set up via gMap3, I suggest these recommended options:
zoomControl : Modernizr.touch ? false : true,
disableDefaultUI: false,
enableCloseButton : true

Add this Javascript function:
function toggleStreetViewControls(state) {
	mapDiv = $("#directory-main-bar");
	if(!state) {
		$('<div class="prevent-dragging"></div>').height({!$themeOptions->directoryMap->mapHeight}).insertBefore(mapDiv);
	else {

Add this code snippet on the end of the script, just before the {include 'ajaxfunctions-javascript.php'}:
if (Modernizr.touch){
	var swDraggableClass = {ifset $themeOptions->directoryMap->draggableForTouch}'active'{else}'inactive'{/ifset};
	var swDraggableTitle = {ifset $themeOptions->directoryMap->draggableForTouch}{__ 'Scorri sito'}{else}{__ 'Scorri vista stradale'}{/ifset};
	var swDraggableButton = $('<div class="draggable-street-view-toggle-button">'+swDraggableTitle+'</div>').insertBefore(mapDiv);
	if(swDraggableClass == 'active') {
		$('<div class="prevent-dragging"></div>').height({!$themeOptions->directoryMap->mapHeight}).insertBefore(mapDiv);
	swDraggableButton.click(function () {
					$(this).removeClass('active').addClass('inactive').text({__ 'Scorri sito'});
			} else {
					$(this).removeClass('inactive').addClass('active').text({__ 'Scorri vista stradale'});

Related post (I didn't replied to the post because it was closed): http://support.ait-themes.com/support/topic/12587 and probably many others.

January 15, 2014, 1:56pm
AIT Supportpeter
Hello, thank you for sharing your experience. I believe it will help to many users :)

If you are satisfied with our theme we would be really thankful to you if you found a minute of your time and would support us on themeforest by 5stars rating. Also feel free to write there in comment something nice about our team.
Simple guide you can find here:
Good luck with your project :)
January 17, 2014, 1:25pm