As OpenStack, prepares for the Grizzly release I was reviewing http://www.openstack.org/software/folsom/ . It's so good, but I did find the first feature with screenshot there a little strange: "Built-in Multi-Tenancy":
"Built-in multi-tenancy allows cloud administrators to delegate self-service access to users who can provision cloud resources within customized limits"
It's deceptive as it doesn't apply to Object Store. Offhand I can't really think how it is really different even from Diablo. It's no surprise these items are not presented in the same way in the Press Release or Release Notes.
Now, I understand why I get questions about this regularly ;-)
I hope we're a little more... conservative in highlighting the Grizzly features.