dependency analysis

Hello everyone, A few of us have been talking about putting dependency analysis into cabal. This, I feel, is something that needs to be Done Right :) So I've put up a page in the wiki: http://hackage.haskell.org/trac/hackage/wiki/DependencyAnalysis. I want to write some code & get this working, but I also want to coordinate efforts, as well as get others' opinions, because there are lots of ways this can be done, and a lot of needs that need to be met. :) Pete