A few of us were talking on #gnome-hackers on Freenode about vendor patches. Davyd, the gnome-applets maintainer, was cursing various vendor patches. As we started talking we realized that there is no single place for GNOME maintainers to go looking for vendor patches. After Glynn Foster of SUN offered up JDSs unified patches and spec files list (direct link to the patches against 2.14), we realized we needed such a central place. Thus VendorPatches as born. As can be seen, OpenSolaris, Ubuntu, Gentoo and OpenSUSE and DiscoverStation are already listed.
The next iteration of that page would be present direct links to the actual patches themselves, which involves parsing a bunch of arcane source formats and presenting them in a nice neat view. All in all, less vendor patches can only be a good thing.
As an aside, isn't this what Launchpad was supposed to solve?