[Haskell-cafe] Data.Binary and error handling

Hello Is there any plans to add error handling for binary? When it comes to binary parsing most awkward part is error handling I presume answer will be like "there are some vague plans but no one to implement them" so the second question how could it be done? Naive implementation of error handliing which converts Get monad into hybrid of state monad and error monad (Either like) gives about 5 times slowdown.