The most recent version of twitter bootstrap (2.3.2) does seem to have a problem with drop down menus on mobile devices.
When you click on a drop-down menu item afte
This worked for me:
$('.dropdown-toggle').click(function(e) { e.preventDefault(); setTimeout($.proxy(function() { if ('ontouchstart' in document.documentElement) { $(this).siblings('.dropdown-backdrop').off().remove(); } }, this), 0); });
via robdodson on github