I have an updated openstack-swift build that brings it to 1.4.0 (I
know, I know, 1.4.1 is out, but they did some things that I think
weren't terribly appropriate for a point release including renaming
binaries, stripping out the auth service, etc and besides it will take
a bit of work to get 1.4.1 ready :) )
For the time being, openstack-swift should be usable, and 1.4.x is
certainly what we should be targeting for F16. So feel free to test
and report problems you have.