OpenStack Grizzly, the seventh release of the open source software for building public, private, and hybrid clouds, has more than 230 new features to support production operations at scale and greater integration with enterprise technologies. The OpenStack community continues to attract the best developers and experts in their disciplines with more than 517 contributors making 7,620 updates in the Grizzly release.
This is good for home use or personal use, but for a large scale company, anything this new with all the flaws and security vulnerability is just bad. No Fortune 500 company will be using Openstack in the near future.
Think about it, if companies wait for 6-12 months before using the new Microsoft Windows Server 2012 or the new CentOs version, what makes you think they will use a new open source software out the gate.