In case you missed it, on May 21st 2009 EMC released PowerPath/VE which is the first true dynamic multipath load balancing solution for virtual environments (vSphere environments only). Building your internal clouds on proven LB and MP software such as PP is in your best interest and necessary to support the increasing demands of the Virtual Data Center. General info captured here from #emcworld, original doc here, admin guide here. Future posts on this topic to come.