There has been this notion that breadcrumbs disappeared in SharePoint 2010 but that’s entirely not true. Microsoft replaced the traditional breadcrumbs with the folder in the ribbon. Most of the time, end-users have a difficult time finding this navigation thus preferring the traditional breadcrumb. Here is a post from Erik Swenson on how to add or replace the folder breadcrumb, the only change I would recommend making, is changing your SiteMapProvider to CurrentNavSiteMapProviderNo... to prevent ......