http://hackage.haskell.org/package/she - "The Strathclyde Haskell Enhancement is a somewhat inglorious bodge, equipping ghc with automatic lifting of types to kinds, pattern synonyms, and some kit for higgledy-piggledy literate programming."

From one of the authors of Epigram: http://e-pig.org

I heard they intend to include functionality of SHE into GHC.