Different to everyone except VMware, Joyent...
VMware has been selling its cloud stack to service providers for years -- over 220 clouds based on it today, versus the 10 or so for OpenStack. AVMware has said it will sell all the s/w used for its vCloud Hybrid Service to SPs. Joyent also resells to a couple of SPs, e.g. Telefonica. So HP's move to sell to SPs (if they ever execute on it) is not remotely unique.