The OpenStack project is a collection of different applications that provide the ability to run an open-source Cloud provider. Rackspace's offerings generally map to OpenStack projects. Cloud Servers is Nova[1], Cloud Files is Swift[2], Cloud Networks is Quantum[3] and Cloud Databases is Red Dwarf [4]. I'm not sure the OpenStack codename for Cloud Block Storage yet, but I'll see if I can find it.<p>[1] <a href="https://launchpad.net/nova/" rel="nofollow">https://launchpad.net/nova/</a><p>[2] <a href="https://launchpad.net/swift/" rel="nofollow">https://launchpad.net/swift/</a><p>[3] <a href="https://launchpad.net/quantum/" rel="nofollow">https://launchpad.net/quantum/</a><p>[4] <a href="https://launchpad.net/reddwarf/" rel="nofollow">https://launchpad.net/reddwarf/</a>