Fedora PPC RPM repo?

[a monkey]

I think Yellow Dog is basically the best distro around PPC-wise. But its 
RPMs are not bleeding-edge enough for me. The only up-to-date enough PPC 
RPM repository that I can find is Fedora's:

http://download.fedora.redhat.com/pub/fedora/linux/core/development/ppc/Fedora/

Any idea how to configure "yum" to use that repo? I know, I know, it's 
not the smartest thing in the world to fool around with development 
repos, but I'm desperate here. I'm not a big fan of compiling my 
software. So, any tips will be appreciated.

Signed,
the monker