Needed for gnome-3.8
you guys really use it somewhere? :-) Anyway i would say shoot ahead and add yourself to maintainers too.
It's used by gnome-extra/sushi Regarding metadata: well, it's the first time I read about this (I catched it when doing a run of repoman for a tentative gnome 3.8 full list) and I am really unsure if could help much with it :(
amd64 stable
ppc stable
x86 stable. Last arch, closing