http://github.com/michaelneale/driver-rackspace/
Hopefully get it upstream soon - (each driver has its own repo it seems).
Outstanding question: how should I return "faults"/'errors" that I get back from rackspace (sometimes they are in the response message itself) - is there some error I can throw that the deltacloud framework will know about?
to run: 1) clone the above repo alongside your other drivers 2) apply the attached patch to the framework (or just hack away at your environment.rb) 3) sign up for rackspacecloud.com and go !
deltacloud-devel@lists.fedorahosted.org