"Rackspace OpenStack backers are looking to provide systems that
can be used by cloud services suppliers, who might manage up to a
million servers. Even though it will be aimed at service providers,
if OpenStack is widely used, customers would be able to deal with
providers the same way.
"Red Hat's effort will be more likely be used by enterprise
customers, giving them a software stack based on open source code
with which to build private clouds around Red Hat. It will also
make it easier for cloud service providers to interact with that
private cloud, if they support Red Hat's approach."