Need Glassholes !!!
Perhaps Gartner could benefit from some new google glass clip on's !
It seems a bit (or massively) crazy that they miss out on Mirantis - they must have over 100 organizations using a generally available product that runs on x86_64 and does virtualization, plus management !!!
This one seems impossible to defend.
You did forget to mention that VMware or Cisco are in fact an Openstack contributors and have a distribution, seems crazy that they would miss those of as well.
For those that care check here https://www.openstack.org/marketplace/distros/