Hi,
Confirmed -- I'm working to implement a small proof of concept + a tiny patch to update_md.py.
A small update_md.py patch (at http://pastebin.ca/1760395), allows us to write simple code (at http://pastebin.ca/1760398) to generate something like http://pastebin.ca/1760399
The update_md patch has also been submitted for consideration to the yum-devel list.