Thanks. "ESX 3.5 was built on top of RHEL" again far from accurate. The COS has been based on RHEL since the genesis of ESX. Whereas VMkernel is VMware's own c

Thanks. "ESX 3.5 was built on top of RHEL" again far from accurate. The COS has been based on RHEL since the genesis of ESX. Whereas VMkernel is VMware's own creation. At least thats what they claim. Even if the COS in ESX 4.X is based on SLES instead of RHEL, your point does not still make sense because VMware's future roadmap is to phase out Classic ESX. Sometime in the future, there will be only ESXi.