Openstack: Open source cloud computing software
I'm a developer on swift (OpenStack storage == Rackspace Cloud Files). We've been pretty excited about opening this, and I'd love to answer any questions you have.Swift documentation is at http://swift.openstack.org. Check out the "SAIO - Swift All In One" page to see how to set up a VM to run it. With some very small tweaks, you can also run it on a single slice (mount a loopback device rather than another virtual drive).Although I don't know as much about it, the compute docs are at http://nova.openstack.org