Survival of generic-classes in ghc

The page http://www.haskell.org/ghc/docs/latest/set/generic-classes.html starts with the text (Note: support for generic classes is currently broken in GHC 5.02). and I know from testing earlier versions that the generic-classes support was pretty buggy. Is there any hope of a revival? Does it already work in CVS? I suspect it will rot away if nobody works on it. Any comments from the implementors - does the idea "fit well" with ghc? Is it a lot of work to make it more stable? /Patrik PS. I guess I should try to find resources (interested students) for a project on making the ghc generic classes really work.