This is an example of a widget that can be used to display Action Streams events. It's really simple, but gets the job done.

<mt:If name="main_index">
<div class="widget">
    <h3 class="widget-header">Elsewhere</h3>
    <mt:ActionStreams lastn="10">
        <div class="widget-content">
            <ul>
                <li><mt:StreamAction smarty_pants="1"></li>

        <mt:DateFooter>
            </ul>
        </mt:DateFooter>
        </div>
    </mt:ActionStreams>
</div>
</mt:If>