What this means to use is (hopefully) when Fedora gets new packages the main EPEL repo should not have to wait a much longer length of time before getting those same RPMs in the repository.
You can read more about this here:
http://lewk.org/blog/bodhi-epel.html
This also means we can start using epel-testing as a true "testing" repo, containing updates we would like folks to test, as opposed to just containing the latest versions that EPEL stable was supposed to have but haven't updated to yet.
I haven't updated the Wiki instructions about using EPEL testing yet -- I'm going to wait until we actually do a push under the new system, though in general if you are interested in helping test, this is good news, and if you are not, it's one less repo to configure and faster package updates for you.
--Michael
cobbler@lists.fedorahosted.org