Great tip!

This is how I manipulated it to use bootstrap help icon and its css:

$(function() {
       	   $("td.w2p_fc").each(function (){
            	var comment = $(this).html();
	            if (comment){
	            	$(this).html('<div><i class="icon info icon-info-sign"></i></div>'); 
	                $(this).children('div').attr('title',comment);     
	                $(this).children('div').tooltip({ placement : 'right',
	                						html : true,
	               							trigger : 'click' });
                }
            });
       });