For Fedora 11 the various packages have been updated to new versions including ghc-6.10.1, darcs-2.2.0, and ghc-gtk2hs-0.10.0. Newly added packages include cabal-install, cpphs, ghc-HTTP, ghc-paths, ghc-zlib.
There is also a new #fedora-haskell IRC channel on Freenode for discussion.