Are you supposed to markup the home and current page for the breadcrumb? I am using data-vocabulary only because schema.org doesn't allow titles or urls to be marked up - only a line of text without dividers unless added manually.
Here is an example of what I have now. Notice that I marked up both the home and current page - is this correct or should one or both not be marked up?
<li itemscope itemtype="http://data-vocabulary.org/Breadcrumb"><a class="home" itemprop="url" href="/"><span itemprop="title"><img alt="Home" height="30" src="/images/trans.gif" width="16"></span></a></li>
<li itemscope itemtype="http://data-vocabulary.org/Breadcrumb"><a itemprop="url" href="/services/"><span itemprop="title">Services</a></span></li>
<li itemscope itemtype="http://data-vocabulary.org/Breadcrumb"><a itemprop="url" href="/service/widget/"><span itemprop="title">Widget</a></span></li>
<li itemscope itemtype="http://data-vocabulary.org/Breadcrumb"><a itemprop="url" href="/service/widget/features.htm"><span itemprop="title">Features</span></a></li>