Don’t do SharePoint multi-tenancy without claims-based authentication

As you can see from my 2 previous posts (UPS, host-name site collections and search), I’ve been toying with Multi-tenancy on SharePoint 2010 and trying out different options.  If you don’t know about multi-tenancy in SharePoint 2010, go read Spencer Harbar’s series here: http://www.harbar.net/archive/2010/09/14/rational-guide-to-multi-tenancy-with-sharepoint-2010-part-six.aspx.  While adding tenants, if you are logged as a Farm Administrator…