Section attributes...
http://www.smarty.net/manual/en/language.function.section.php
And another crack at tpl level for removing the product name on the product page's breadcrumb (a little cleaner, no idea if it is quicker though)...
PHP Code:
{assign var=to_be_displayed value=$smarty.section.position.loop}
{if $product}{math assign="to_be_displayed" equation="x-1" x=$smarty.section.position.loop}{/if}
{strip}
{section name=position loop=$location max=$to_be_displayed}
{if $location[position].1 ne "" }<a href="{$location[position].1|amp}" class="NavigationPath">{/if}
{$location[position].0}
{if $location[position].1 ne "" }</a>{/if}
{if not %position.last%} > {/if}
{/section}
{/strip}